blocks|key|3947933|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3947934|打开您的项目文件夹。|ordered-list-item|3947935|查找ProjectName.xcodeproj+file.|3947936|Right-Click复制并粘贴到Safe+Place.|3947937|Right-Click显示包内容。|3947938|查找project.xcworkspace文件并删除该文件。|3947939|重新打开您的项目并清理并重新生成。|3947940|3947941|如果您的问题没有得到解决，则用备份文件替换该文件。|3947942|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|S|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|T|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|U|7|@]|8|@]|9|$]]|$1|F|3|G|4|C|6|V|7|@]|8|@]|9|$]]|$1|H|3|I|4|C|6|W|7|@]|8|@]|9|$]]|$1|J|3|K|4|C|6|X|7|@]|8|@]|9|$]]|$1|L|3|M|4|C|6|Y|7|@]|8|@]|9|$]]|$1|N|3|-4|4|5|6|Z|7|@]|8|@]|9|$]]|$1|O|3|P|4|5|6|10|7|@]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|11|7|@]|8|@]|9|$]]]|R|$]]

<ol>
<li>Open your Project Folder.</li>
<li>Find ProjectName.xcodeproj file.</li>
<li>Right-Click Copy and Paste to Safe Place.</li>
<li>Right-Click Show Package Contents.</li>
<li>Find project.xcworkspace file and delete that file.</li>
<li>Reopen Your Project and clean and Rebuild.</li>
</ol>

If your problem is not solved then replace the file with your backup file.

blocks|key|63567|text|我遇到了一个类似的问题，Xcode会花费大量时间进行索引，并且经常挂起构建项目，这时我不得不强制退出并重新启动Xcode。这是非常烦人的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63568|然后，我注意到项目中有一条关于不正确地将self指定为委托的警告。果不其然，类声明中缺少一个协议。请注意，OP的示例代码中也有类似的赋值(尽管无法从示例中判断是否声明了正确的协议)：|offset|length|style|CODE|63569|leaderboardController.leaderboardDelegate+==+self;|code-block|syntax|javascript|63570|在解决了该警告之后(通过正确声明实现的协议)，Xcode停止了行为不端。另外，我应该注意到，由于实现了协议方法，因此该项目确实执行正确。只是Xcode不能确认协议实际上应该由类实现。|63571|entityMap^0|0|K|4|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I had a similar problem where Xcode would spend lots of time indexing and would frequently hang building the project, at which point I had to force-quit and relaunch Xcode. It was very annoying. 

Then I noticed a warning in the project about improperly assigning <code>self</code> as a delegate. Sure enough, there was a missing protocol in the class declaration. Note that there is a similar assignment in the OP's sample code (though it is impossible to tell from the sample whether the correct protocol is declared):

<pre><code>leaderboardController.leaderboardDelegate == self;
</code></pre>

After resolving that warning (by correctly declaring the implemented protocol), Xcode stopped misbehaving. Also, I should note that the project did execute correctly since the protocol methods were implemented. It was just that Xcode could not confirm that the protocol should in fact implemented by the class.

blocks|key|3948044|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948045|从Xcode+|ordered-list-item|3948046|打开Xcode管理器中关闭该项目，在Organizer|3948047|Close/re-open+Xcode|3948048|3948049|中找到有问题项目|3948050|删除派生数据文件夹|unordered-list-item|3948051|3948052|在所有Xcode行为异常的情况下，核化派生数据是第一件要尝试的事情|3948053|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|S|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|T|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|U|7|@]|8|@]|9|$]]|$1|F|3|G|4|C|6|V|7|@]|8|@]|9|$]]|$1|H|3|-4|4|C|6|W|7|@]|8|@]|9|$]]|$1|I|3|J|4|5|6|X|7|@]|8|@]|9|$]]|$1|K|3|L|4|M|6|Y|7|@]|8|@]|9|$]]|$1|N|3|-4|4|5|6|Z|7|@]|8|@]|9|$]]|$1|O|3|P|4|5|6|10|7|@]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|11|7|@]|8|@]|9|$]]]|R|$]]

<ol>
<li>Close that project from Xcode</li>
<li>Open Xcode Organizer, find the problematic project</li>
<li>Delete Derived Data folder in the Organizer</li>
<li>Close/re-open Xcode</li>
</ol>

Nuking Derived Data is the first thing to try in all cases of Xcode misbehaving

blocks|key|4428964|text|同时停止运行app。如果您有另一个应用程序正在运行您的xcode，请先停止它，然后继续您的索引。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4428965|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also stop running app. if you have another application running with your xcode, stop it first and you should have your indexing continue.

blocks|key|63617|text|我遇到了这个问题，它是由一个20项数组文字引起的。必须切换到不同的语法。真的很傻。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63618|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had this exact problem, it was caused by a 20 item array literal. Had to switch to different syntax. Pretty silly.

blocks|key|3948207|text|在Xcode+6.4中也有类似的问题。进度条显示“索引”已“暂停”。尝试删除project.xcworkspace，然后如上所述删除派生数据。似乎没有帮助。注意到上面的帖子也建议修复警告，由于我继承了这个具有180个警告的庞大项目，我对自己说，“这看起来像是一个修复警告的好日子”。当我修复警告时，半小时后，我注意到“索引”进度条从10%25增加到了20%25左右。一个小时后，它是50%25，然后又一个小时到80%25，然后再过半个小时就完成了！结论:在上面的建议中加上“吃个长午餐或睡个午觉”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948208|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Had similar problem in Xcode 6.4. The progress bar indicated that "Indexing" was "Paused". Tried deleting project.xcworkspace, then deleting Derived Data as described above. Did not appear to help. Noting that the posts above also suggest fixing warnings, and since I had inherited this huge project with 180 warnings, I said to myself, "What the hell this looks like a good day to fix warnings". As I was fixing warnings, a half hour later, I noticed that the "Indexing" progress bar had increased from 10% to about 20%. An hour later, it was at 50%, then another hour to 80%, then after another half hour it was done! Conclusion: Add "take a long lunch or a nap" to the above suggestions.

blocks|key|4429028|text|当使用Xcode6时，它显示|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429029|4429030|正在等待make|blockquote|4429031|4429032|4429033|可能make的一个实例已经在运行。终止进程并继续进行索引。很傻，但对我很管用。|4429034|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|M|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|N|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|O|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|P|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Q|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|K|$]]

When using Xcode 6 and it says 

<blockquote>
 Waiting for make
</blockquote>

It might be that an instance of make is already running. Kill the process and indexing proceeds. Silly, but worked for me.

blocks|key|63649|text|我在Xcode7.0测试版中遇到了同样的问题。在我的例子中，“构建设置”的"Provisioning+Profile“和"Product+bundle+identifier”的值在项目和目标之间是不同的。我为它们设置了相同的值。我也对"appName“和"appNameTest”的目标使用了相同的值。然后关闭项目并重新打开它。解决了我的案子。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63650|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I experienced the same issue for Xcode 7.0 beta.
In my case, values for "Provisioning Profile" and "Product bundle identifier" of "Build Settings" differed between PROJECT and TARGETS.
I set the same values for them. And I also used the same values for TARGETS of "appName" and "appNameTest".
Then closed the project and reopened it.
That resolved my case.

blocks|key|63173|text|我遇到了类似的问题，并发现我意外地将一个类定义为它自己的子类。我没有收到任何警告或错误，但是编译被卡住了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63174|class+mainClass+:+mainClass
{
++++...
}|code-block|syntax|javascript|63175|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I had a similar problem, and found that I accidentally defined a class as its own subclass. I got no warning or error for this but the compiling got stuck.

<pre><code>class mainClass : mainClass
{
 ...
}
</code></pre>

blocks|key|63677|text|对我来说，完全关闭Xcode，然后重新启动项目就行了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63678|这不是原始问题的解决方案，我不相信，但在删除文件和文件夹等之前，这是一件更简单的尝试。这要归功于this+answer的想法。|offset|length|63679|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/16745826/3681880^0|0|1C|B|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

For me completely closing out of Xcode and then restarting the project worked.

This is not the solution for the original question, I don't believe, but it is one more simple thing to try before deleting files and folders, etc. Credit to <a href="https://stackoverflow.com/a/16745826/3681880">this answer</a> for the idea.

blocks|key|4429129|text|在我的例子中，删除派生的数据目录没有帮助。显然，我有一个文件被另一个进程锁定，因为在关闭了几个终端窗口和emacs，并终止了一个react本机打包程序进程之后，一切都解决了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429130|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In my case, deleting the derived data directory did not help. Apparently I had a file locked by another process, because after closing out a couple of terminal windows and emacs, and terminating a react-native packager process, everything resolved.

blocks|key|63703|text|对我来说，原因是我同时在主编辑器和助理编辑器中打开了相同的文件。一旦我关闭了Assistant+Editor，它就出现了。(Xcode版本7.2.1)|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|63704|entityMap^0|Q|3|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

For me, the cause was I opened the same file in both the Primary Editor and Assistant Editor at the same time. Once I closed Assistant Editor, it came through. (Xcode Version 7.2.1)

blocks|key|63233|text|命令-选项-Shift-K清理构建文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63234|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Command-Option-Shift-K to clean build folders.

blocks|key|3948391|text|关闭您的Xcode，关闭任何git客户端(源码树或终端)，如果它是打开的，最后重新启动您的项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948392|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Close Your Xcode , close any git client(source tree or terminal)if it is opened and finally restart your project.

blocks|key|4429240|text|我也面临着这个问题。我注意到我已经打开了同一个项目两次。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429241|所以QuitXCode+>打开你的项目，并确保只有一个实例是打开的>清理>+CleanBuild文件夹，在某些情况下是>+build。|4429242|它应该是可行的|4429243|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I too was facing the problem. I noticed that I have opened the same project twice.

So QuitXCode > Open your project and make sure only one instance is open > Clean > CleanBuild Folder in some cases > build.

It should work

blocks|key|599728|text|按住alt+>产品>清理构建文件夹|type|unstyled|depth|inlineStyleRanges|entityRanges|data|599729|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Hold alt > Product > Clean Build Folder

blocks|key|4429275|text|最近在XCode+7.3.1上遇到了这个问题--对我来说，我注意到CleanMyMac3的内存使用率达到了100%25。这个问题在我重新启动机器后神奇地解决了。不过，公平地说，我已经尝试了接受答案，所以您在重新启动之前也要这样做，以防万一:-)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429276|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Faced this recently on XCode 7.3.1 - for me, I noticed RAM usage going to 100% on to CleanMyMac3. The problem magically fixed itself after I restarted my machine. In all fairness however, I'd already gone ahead and tried the accepted-answer, so you'll want to do the same before you restart just in case :-)

blocks|key|3948467|text|我修复了这个问题，只需从我的设备上删除应用程序并重新构建。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948468|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I fixed this by simply deleting the app from my device and rebuild.

blocks|key|4429376|text|我在swift+2.2中也遇到了同样的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429377|它必须处理一个泛型函数重载函数|4429378|func+warnLog()+{
++++print("Warning+line:+\(#line)+file:+\(#file)+")
}

func+warnLog<T>(input:T?+=+nil)+->+T?+{
++++print("Warning+line:+\(#line)+file:+\(#file)+")
++++return+input
}

func+warnLog<T>(input:T)+->+T+{
++++print("Warning+line:+\(#line)+file:+\(#file)+")
++++return+input
}|code-block|syntax|javascript|4429379|我所需要做的就是删除其中一个未使用的重载|4429380|func+warnLog<T>(input:T?+=+nil)+->+T?+{
++++print("Warning+line:+\(#line)+file:+\(#file)+")
++++return+input
}|4429381|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I had the same issue in swift 2.2 

It had to do with a generic function overloaded function

<pre><code>func warnLog() {
 print("Warning line: \(#line) file: \(#file) ")
}

func warnLog&lt;T&gt;(input:T? = nil) -&gt; T? {
 print("Warning line: \(#line) file: \(#file) ")
 return input
}

func warnLog&lt;T&gt;(input:T) -&gt; T {
 print("Warning line: \(#line) file: \(#file) ")
 return input
}
</code></pre>

all I needed to do is remove one of the non used overloads

<pre><code>func warnLog&lt;T&gt;(input:T? = nil) -&gt; T? {
 print("Warning line: \(#line) file: \(#file) ")
 return input
}
</code></pre>

blocks|key|3948561|text|对我来说，我犯了一个愚蠢的错误。我写了一个这样的类：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948562|class+A:+A+{
.......
}|code-block|syntax|javascript|3948563|导致冻结的类会继承自身。没有来自Xcode的消息提示。|3948564|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For me, I made a stupid mistake. I write a Class like this:

<pre><code>class A: A {
.......
}
</code></pre>

A class inherit itself that causes the freezing. There is no message hint from Xcode.

blocks|key|3948583|text|这是一个Xcode错误(Xcode+8.2.1)，我已经向Apple报告过，当你有一个大的字典文字或嵌套的字典文字时，它就会发生。你必须将你的字典分解成更小的部分，并使用append方法添加它们，直到苹果修复这个bug。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948584|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

It's a Xcode bug (Xcode 8.2.1) and I've reported that to Apple, it will happen when you have a large dictionary literal or a nested dictionary literal. You have to break your dictionary to smaller parts and add them with append method until Apple fixes the bug.

blocks|key|63870|text|我的案例:它不是project.xcworkspace文件，也不是派生的数据文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63871|我浪费了很多时间。更糟糕的是，没有错误消息。关于Xcode的部分没有线索。完全迷失了。|63872|最后，此函数(使用10个以上的参数)起作用。|63873|func+animationFrames(level:+Float,
+++++++++++++++++++++image:+String,
+++++++++++++++++++++frame0:+String,
+++++++++++++++++++++frame1:+String,
+++++++++++++++++++++frame2:+String,
+++++++++++++++++++++frame3:+String,
+++++++++++++++++++++frame4:+String,
+++++++++++++++++++++frame5:+String,
+++++++++++++++++++++frame6:+String,
+++++++++++++++++++++frame7:+String,
+++++++++++++++++++++frame8:+String,
+++++++++++++++++++++frame9:+String,
+++++++++++++++++++++frame10:+String)+{
}|code-block|syntax|javascript|63874|变得疯狂！事实是它令人担忧(因为没有语法错误，也没有任何类型)|63875|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

My case: it was not the project.xcworkspace file, it was not the Derived Data folder.

I've wasted a lot of time. Worse, no error message. No clue on the part of Xcode. Absolutely lost.

Finally this function (with more than 10 parameters) is responsible.

<pre><code>func animationFrames(level: Float,
 image: String,
 frame0: String,
 frame1: String,
 frame2: String,
 frame3: String,
 frame4: String,
 frame5: String,
 frame6: String,
 frame7: String,
 frame8: String,
 frame9: String,
 frame10: String) {
}
</code></pre>

To go crazy! The truth is that it is worrisome (because there is no syntax error, or any type)

blocks|key|63899|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63900|首先，断开网络连接。有线网络和无线网络都应该关闭。|unordered-list-item|63901|第二，终止com.apple.dt.SourceKitService进程。然后，XCode将重新开始索引，而不是卡住。|offset|length|style|CODE|63902|63903|​|63904|📷|atomic|63905|63906|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/35e01b525ce3ac021a50a6702765e6fc.png|imageAlt^0|0|0|5|T|0|0|0|0|1|0|0|0^^$0|@$1|2|3|-4|4|5|6|Z|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|10|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|11|7|@$F|12|G|13|H|I]]|8|@]|9|$]]|$1|J|3|-4|4|5|6|14|7|@]|8|@]|9|$]]|$1|K|3|L|4|5|6|15|7|@]|8|@]|9|$]]|$1|M|3|N|4|O|6|16|7|@]|8|@$F|17|G|18|1|19]]|9|$]]|$1|P|3|L|4|5|6|1A|7|@]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|1B|7|@]|8|@]|9|$]]]|R|$S|$4|T|U|V|9|$W|X|Y|-4]]]]

<ul>
<li>First, disconnect from network. Both your wired network and wireless network should turn off.</li>
<li>Second, kill the <code>com.apple.dt.SourceKitService</code> process. Then XCode would start to index again instead of stuck.</li>
</ul>

<a href="https://i.stack.imgur.com/4m2Xd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4m2Xd.png" alt="enter image description here"></a>

blocks|key|4429574|text|click+and+>关闭任何打开的数据，单击您的内容，选择“显示内容”，然后删除“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429575|”PROJECT_NAME.xcworkspace+|ordered-list-item|4429576|4429577|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|I|8|@]|9|@]|A|$]]|$1|E|3|-4|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

<ol>
<li>Close any opened Xcode</li>
<li><code>rm -rf ~/Library/Developer/Xcode/DerivedData</code></li>
<li>Right click your PROJECT_NAME.xcworkspace, choose 'show content', and delete 'xcuserdata' folder</li>
</ol>

blocks|key|4429604|text|这事发生在我身上。如果您使用的是cocoapods，请执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429605|在终端上使用'pod+|4429606|‘删除project.xcworkspace|unordered-list-item|4429607|
|4429608|Reinstall+pod|4429609|4429610|它将创建一个新的pod+->清理->+|4429611|4429612|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|T|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|U|8|@]|9|@]|A|$]]|$1|K|3|H|5|6|7|V|8|@]|9|@]|A|$]]|$1|L|3|M|5|F|7|W|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

This happened to me. If you are using cocoapods do this:

<ol>
<li>Delete project.xcworkspace</li>
<li>Reinstall pods using 'pod install' on the terminal</li>
<li>It will create a new project.xcworkspace</li>
<li>Open the new project.xcworkspace -> Clean -> Build</li>
</ol>

blocks|key|600093|text|对于XCode+9.3索引问题-卸载XCode，然后从零重新安装。这对我很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|600094|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For XCode 9.3 indexing issue - Uninstall the XCode and instal again from zero. Works for me.

blocks|key|600229|text|如果你试图解决索引问题，并且你在页面下面这么远的地方，另一件事可以尝试！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|600230|尝试将此标志添加到您的构建设置中。|600231|-Xfrontend+-warn-long-expression-type-checking=400|offset|length|style|CODE|600232|​|600233|📷|atomic|600234|600235|它会在编译器需要很长时间才能推导出复杂表达式时发出警告。|600236|600237|600238|600239|这可能会导致构建错误，在找到较慢的表达式并删除构建标志后，该错误将消失。|600240|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/1e364c9fe7ebdc6008902e37a5d27649.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/a440e5e49474273eb45c7771b4d8d74f.png^0|0|0|0|1E|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|19|8|@$F|1A|G|1B|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1C|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1D|8|@]|9|@$F|1E|G|1F|1|1G]]|A|$]]|$1|O|3|K|5|6|7|1H|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1I|8|@]|9|@]|A|$]]|$1|R|3|K|5|6|7|1J|8|@]|9|@]|A|$]]|$1|S|3|M|5|N|7|1K|8|@]|9|@$F|1L|G|1M|1|1N]]|A|$]]|$1|T|3|K|5|6|7|1O|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1P|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13|14|-4]]|15|$5|Z|10|11|A|$12|16|14|-4]]]]

Another thing to try if your trying to solve indexing issues and you're this far down the page!

Try adding this flag to your build settings.

<code>-Xfrontend -warn-long-expression-type-checking=400</code>

<img src="https://i.stack.imgur.com/q62AU.png" alt="build settings flag">

It will cause warning where the compiler take a long time to deduce a complex expression.

<img src="https://i.stack.imgur.com/dB31K.png" alt="warning">

This may cause a build error which will go away after you find the slow expressions and then remove the build flag.

blocks|key|4429794|text|当我的机器交换空间不足时，这个问题就发生在我身上。关闭了几个程序和浏览器选项卡，30分钟后构建突然成功。与我这边的派生数据、锁定文件等无关。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4429795|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

This issue happened to me when my machine was out of swap space. Closed several programs and browser tabs and the build suddenly succeeded after 30 minutes of being stuck in place. Nothing to do with derived data, locked files, etc. on my side.

blocks|key|3948936|text|我在一些使用Xcode+9.3.1的项目中遇到过这个问题，在我的例子中，这个问题是由于某些快速的代码导致的，出于某些原因，Xcode不喜欢这些代码。这个问题很难解决，因为很难找到导致问题的文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948937|当我遇到这个问题时，我会从Xcode项目中删除一些文件(删除引用)，并尝试测试索引是否工作。我这样做的过程|3948938|3948939|删除一些文件|ordered-list-item|3948940|关闭Xcode+|3948941|打开Xcode|3948942|如果索引完成尝试重命名一些方法如果有效，可能是你已经删除的文件对Xcode有一些奇怪的东西。|3948943|3948944|在我的例子中，我在同一个文件中有一个带有反应式扩展名的类定义，由于某些原因Xcode不喜欢它，我将反应式扩展名移到了另一个文件中，现在索引工作得很好。|3948945|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|G|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|G|7|X|8|@]|9|@]|A|$]]|$1|L|3|M|5|G|7|Y|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

I have experienced this problem in some projects with Xcode 9.3.1 and in my case the problem is due to some swift code that for some reason Xcode doesn't like. This problem is hard to solve because is difficult to find what file is causing the problem.

When I have this problem, I removing some files from the Xcode project (removing references) and I try to test if indexing works. My process to do so

<ol>
<li>Remove some files</li>
<li>Close Xcode</li>
<li>Open Xcode</li>
<li>If indexing finish try to rename some method if works probably the files you have removed they have something strange for Xcode. </li>
</ol>

In my case I had a class definition with a reactive extension in the same file and for some reason Xcode doesn't like it, I moved the reactive extension to another file and now the indexing works fine.

blocks|key|3948989|text|没有什么对我有效，我的项目太大了(将objective+c、c%2B%2B、swift和java文件与j2obj合并)。我禁用了Xcode索引，并在没有代码完成的情况下工作了几个月(这是一件痛苦的事情)。但最终我找到了一种变通方法。其思想是保持Xcode对代码进行索引，但使用cputhrottle等外部工具限制其CPU使用率。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3948990|因此，首先需要在终端中安装cputhrottle|3948991|3948992|+brew安装cputhrottle|blockquote|3948993|3948994|3948995|然后像这样限制Xcode索引过程(20+=+20%25)|3948996|3948997|+sudo+cputhrottle+$(pgrep+-f+com.apple.dt.SKAgent)+20|3948998|3948999|3949000|我已经在这里展示了我的“解决方案”和模式细节：How+to+prevent+Xcode+using+100%25+of+CPU+when+indexing+big+projects|3949001|entityMap|0|LINK|mutability|MUTABLE|url|http://jpsarda-blog.tumblr.com/post/180886458652/how-to-prevent-xcode-using-100-of-cpu-when^0|S|1|U|3|Y|5|14|4|3Q|B|0|0|0|0|0|0|0|0|0|0|0|N|1T|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1F|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]|$1|I|3|J|5|K|7|1H|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1K|8|@]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1L|8|@]|D|@]|E|$]]|$1|Q|3|R|5|K|7|1M|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1P|8|@]|D|@$9|1Q|A|1R|1|1S]]|E|$]]|$1|W|3|-4|5|6|7|1T|8|@]|D|@]|E|$]]]|X|$Y|$5|Z|10|11|E|$12|13]]]]

Nothing worked for me, my project is too big (merging objective <code>c</code>, <code>c++</code>, <code>swift</code>, and <code>java</code> files with j2obj). I've disabled Xcode indexing and worked without code completion for months (and it's a pain). But finally I've found a workaround. The idea is to keep Xcode indexing the code, but to limit its CPU usage with an external tool like <code>cputhrottle</code>. 

So first you need to install cputhrottle in terminal

<blockquote>
 brew install cputhrottle
</blockquote>

Then limit the Xcode indexing process like this (20 = 20%)

<blockquote>
 sudo cputhrottle $(pgrep -f com.apple.dt.SKAgent) 20
</blockquote>

I've exposed my "solution" here with mode details : <a href="http://jpsarda-blog.tumblr.com/post/180886458652/how-to-prevent-xcode-using-100-of-cpu-when" rel="nofollow noreferrer">How to prevent Xcode using 100% of CPU when indexing big projects</a>

blocks|key|600373|text|我已经尝试了所有列出的东西，索引一直在冻结。这对我很有帮助:如果你的索引被冻结了，你有一个或多个快速进程消耗了你99%25的cpu+--只要终止这个快速任务，稍等片刻，进程就会前进。它可以重复，直到它到达结束，在我的例子中，我杀死了进程7次，但在最后，索引完成了！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|600374|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I've tried all the things listed, indexing is keep freezing. This helped me: If your indexing is freeze, and you have one or more swift process eating 99% of your cpu - just kill this swift task(s), wait a bit, and progress should move. It can repeats, until it reaches finish, in my case I killed the process 7 times, but at the end, indexing was completed!

blocks|key|64098|text|在一个SwiftUI项目中遇到了这个问题。结果是我的一个SwiftUI视图有一个错误声明的变量。我有：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|64099|@EnvironmentObject+var+roomViewModel|code-block|syntax|javascript|64100|我需要的地方是：|64101|@EnvironmentObject+var+roomViewModel:+RoomViewModel|64102|没有编译器错误，只有无休止的索引。在我修复了这个错误之后，这个项目很快就建立起来了。|64103|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Had this problem on a SwiftUI project. Turned out one of my SwiftUI views had an incorrectly declared variable. I had:

<pre><code>@EnvironmentObject var roomViewModel
</code></pre>

where I needed:

<pre><code>@EnvironmentObject var roomViewModel: RoomViewModel
</code></pre>

There was no compiler error, just endless indexing. After I fixed the error, the project built quickly.

blocks|key|63583|text|是的，每次我试图打开我的Main.Storyboard时，Xcode都会突然冻结。这只发生在我的一个项目上，然后发生在Xcode上的所有项目上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63584|我尝试了下面的方法，但没有成功|63585|63586|删除并重新安装Xcode。|ordered-list-item|63587|63588|63589|系数重置我的mac.|63590|63591|63592|创建新项目并将文件夹移动到新项目。对我也不起作用。|63593|63594|我的例子是Solution，我相信你们中的大多数人都会遇到这种情况。|offset|length|style|BOLD|63595|我已经注意到，名为"IBAgent-iOS"的进程占用了我的大部分CPU资源。每次我想打开故事板，它消耗高达97%25的CPU资源！|63596|因此，我需要转到Activity+>+Search+for+this+process+name+"IBAgent-iOS"+(主要显示在顶部)>单击它并强制退出。|63597|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|5|8|0|9|D|0|1C|D|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|15|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|17|8|@]|9|@]|A|$]]|$1|J|3|K|5|G|7|18|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|N|3|O|5|G|7|1B|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1D|8|@$S|1E|T|1F|U|V]]|9|@]|A|$]]|$1|W|3|X|5|6|7|1G|8|@$S|1H|T|1I|U|V]]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1J|8|@$S|1K|T|1L|U|V]]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|11|$]]

Yes each time I try to open my Main.Storyboard Xcode freezes suddenly. This was happening with only one of my projects then it happens to all my projects on Xcode.
Tried the following with no luck:
<ol>
<li>Remove Xcode &amp; reinstall it.
</li>
<li>Factor reset my mac.
</li>
<li>Create a new project and move folders to the new project. Also not worked for
me.
</li>
</ol>
Solution [In my case], which I believe it happens to most of you.
I have noticed that process named &quot;IBAgent-iOS&quot; consumes most of my CPU resources. Each time I want to open the storyboard it consumes up to 97% of CPU resources!
So I need to go to Activity Monitor &gt; Search for this process name &quot;IBAgent-iOS&quot; (Mainly appears at the top) &gt; click on it and Force Quit.

blocks|key|4430047|text|我正在使用Xcode+11.4.1，我在几个项目中也遇到了同样的问题。每次，当互联网连接中断时，索引就会启动。最好的解决方案(这只是我根据对这个问题的观察得出的观点)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4430048|-关闭互联网，干掉“com.apple...”进程，然后重新启动Xcode(打开连接)|offset|length|style|BOLD|4430049|或者更简单|4430050|-只需重启Mac(带互联网)|4430051|entityMap^0|0|0|17|0|0|0|E|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@$D|T|E|U|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|M|$]]

I'm working with Xcode 11.4.1 and I have the same problem with several projects. Every time, when internet connection is lost, indexing gets up. The best solution (it's just my opinion based on observing this problem):
- turn off internet and just kill the &quot;com.apple....&quot; process, then restart the Xcode(turn on connection)
or more easier
- just restart the Mac(with the internet)

blocks|key|4430147|text|2022+%7C算法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4430148|在com.apple.dt.SKAgent上执行|offset|length|style|CODE|4430149|打开活动监视和终止|ordered-list-item|4430150|4430151|4430152|如果没有帮助：|4430153|4430154|Close+Xcode(cmd%2BQ)。在终端中运行命令：|4430155|4430156|rm+-rf+~/Library/Developer/Xcode/DerivedData|4430157|4430158|4430159|4430160|重新启动PC|4430161|4430162|4430163|4430164|4430165|右击PROJECT_NAME.xcworkspace，选择'show+content'，然后删除'xcuserdata‘folder|4430166|4430167|4430168|4430169|4430170|运行您的项目生成并显示其他警告。为此，您需要编写以下代码：|4430171|4430172|-Xfrontend+-warn-long-expression-type-checking=100|4430173|到以下位置：|4430174|​|4430175|📷|atomic|4430176|4430177|并在所有地方优化代码。|4430178|4430179|4430180|Z.卸载XCode并从头开始安装|4430181|4430182|4430183|Z%2B1。El+Belga+https://stackoverflow.com/a/50541767/4423545的答案|4430184|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/3c298450e6817a7e97b4247960012630.png|imageAlt|1|LINK|MUTABLE|url|https://stackoverflow.com/a/50541767/4423545^0|0|1|K|0|0|0|0|0|0|0|0|0|18|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1E|0|0|0|0|1|0|0|0|0|0|0|0|0|0|D|18|1|0^^$0|@$1|2|3|4|5|6|7|2A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|2B|8|@$D|2C|E|2D|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|2E|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|2H|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|2I|8|@]|9|@]|A|$]]|$1|P|3|Q|5|J|7|2J|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|2K|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|2L|8|@$D|2M|E|2N|F|G]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|2O|8|@]|9|@]|A|$]]|$1|V|3|N|5|6|7|2P|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|2Q|8|@]|9|@]|A|$]]|$1|X|3|Y|5|J|7|2R|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|2S|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|2T|8|@]|9|@]|A|$]]|$1|11|3|N|5|6|7|2U|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|2V|8|@]|9|@]|A|$]]|$1|13|3|14|5|J|7|2W|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|2X|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|17|3|N|5|6|7|2Z|8|@]|9|@]|A|$]]|$1|18|3|-4|5|6|7|30|8|@]|9|@]|A|$]]|$1|19|3|1A|5|J|7|31|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|32|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|33|8|@$D|34|E|35|F|G]]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|36|8|@]|9|@]|A|$]]|$1|1G|3|1H|5|6|7|37|8|@]|9|@]|A|$]]|$1|1I|3|1J|5|1K|7|38|8|@]|9|@$D|39|E|3A|1|3B]]|A|$]]|$1|1L|3|1H|5|6|7|3C|8|@]|9|@]|A|$]]|$1|1M|3|1N|5|6|7|3D|8|@]|9|@]|A|$]]|$1|1O|3|-4|5|6|7|3E|8|@]|9|@]|A|$]]|$1|1P|3|N|5|6|7|3F|8|@]|9|@]|A|$]]|$1|1Q|3|1R|5|6|7|3G|8|@]|9|@]|A|$]]|$1|1S|3|-4|5|6|7|3H|8|@]|9|@]|A|$]]|$1|1T|3|N|5|6|7|3I|8|@]|9|@]|A|$]]|$1|1U|3|1V|5|6|7|3J|8|@]|9|@$D|3K|E|3L|1|3M]]|A|$]]|$1|1W|3|-4|5|6|7|3N|8|@]|9|@]|A|$]]]|1X|$1Y|$5|1Z|20|21|A|$22|23|24|-4]]|25|$5|26|20|27|A|$28|29]]]]

<h1>2022 | Algorithm what to do:</h1>
<ol>
<li>Open activity monitor and kill there <code>com.apple.dt.SKAgent</code></li>
</ol>
<hr />
If did not help:
<ol start="2">
<li>Close Xcode(cmd+Q). Run command in terminal:</li>
</ol>
<code>rm -rf ~/Library/Developer/Xcode/DerivedData</code>
<hr />
If did not help:
<ol start="3">
<li>Restart PC</li>
</ol>
<hr />
If did not help:
<ol start="4">
<li>Right click your PROJECT_NAME.xcworkspace, choose 'show content', and delete 'xcuserdata' folder</li>
</ol>
<hr />
If did not help:
<ol start="5">
<li>run your project build with additional warning. For doing this you need to write:
<code>-Xfrontend -warn-long-expression-type-checking=100</code>
to the following place:
</li>
</ol>
<a href="https://i.stack.imgur.com/Gjg9j.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Gjg9j.png" alt="enter image description here" /></a>
and optimize code at all of places.
<hr />
If did not help:
Z. Uninstall XCode and install it from scratch
<hr />
If did not help:
Z+1. answer of El Belga <a href="https://stackoverflow.com/a/50541767/4423545">https://stackoverflow.com/a/50541767/4423545</a>

blocks|key|64235|text|我知道这是一个相当古老的问题，但这个问题仍然存在。这是我在体验这个过程中发现的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|64236|在NavigationLink中，我给了一个不带参数的视图一个参数。它挂起了构建和索引，但没有踢出编译器错误。这是而不是+cool。|offset|length|style|BOLD|64237|这就是我是如何复制的。在包含导航视图的顶级视图中，我在Stack中的List中包含以下代码块。因此，我的顶级视图的层次结构类似于(伪代码)：|64238|Body+{
++++VStack+{
++++++++[CustomViewForPageHeader]
++++++++List+{
++++++++++++(the+code+block+pasted+below)
++++++++++++(some+other+things)
++++++++}
++++}
}|code-block|syntax|javascript|64239|令人不快的是：|64240|++++++++++++if+0+<+viewModel.taskUpdates.count+{
++++++++++++++++Section(+"Chore+updates"){
++++++++++++++++++++ForEach(viewModel.taskUpdates,+id:\.id){+update+in
++++++++++++++++++++++++if+"complete"+==+update.statusType+{
++++++++++++++++++++++++++++NavigationLink+{
++++++++++++++++++++++++++++++++CompletedTaskApprovalView(+update:+update+)
++++++++++++++++++++++++++++}+label:+{
++++++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++++++if+"reject"+==+update.statusType+{
++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}|64241|记得我在重组一些数据时删除了参数，我很沮丧编译器没有吐在这上面。我注释掉了整行，所以它看起来像这样：|64242|++++++++++++if+0+<+viewModel.taskUpdates.count+{
++++++++++++++++Section(+"Chore+updates"){
++++++++++++++++++++ForEach(viewModel.taskUpdates,+id:\.id){+update+in
++++++++++++++++++++++++if+"complete"+==+update.statusType+{
++++++++++++++++++++++++++++NavigationLink+{
++++++++++++++++++++++++++++++++//CompletedTaskApprovalView(+update:+update+)
++++++++++++++++++++++++++++}+label:+{
++++++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++++++if+"reject"+==+update.statusType+{
++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}|64243|你看，哇，它工作得很好。|64244|取消注释并删除参数...|64245|++++++++++++if+0+<+viewModel.taskUpdates.count+{
++++++++++++++++Section(+"Chore+updates"){
++++++++++++++++++++ForEach(viewModel.taskUpdates,+id:\.id){+update+in
++++++++++++++++++++++++if+"complete"+==+update.statusType+{
++++++++++++++++++++++++++++NavigationLink+{
++++++++++++++++++++++++++++++++CompletedTaskApprovalView()
++++++++++++++++++++++++++++}+label:+{
++++++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++++++if+"reject"+==+update.statusType+{
++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}|64246|whammo，redux，再一次，工作得很好。|64247|当我稍微修改一下数据模型时，我把CompletedTaskApprovalView中的所有东西都去掉了，所以它看起来像这样(字面上只是一个占位符)：|64248|导入SwiftUI|64249|struct+CompletedTaskApprovalView:+View+{
++++
++++var+body:+some+View+{
++++++++Text("Approve+chores")
++++++++++++.font(.title)
++++}
}|64250|编译器永远不应该让我尝试给它一个参数。所以我认为这很奇怪，我想知道我的视图的代码文件是否有某种时髦的不可见的损坏。在顶层视图的文件中，我在底部添加了一个新视图(SomeTestView)+...|64251|struct+SomeTestView:+View+{
++++var+body:+some+View+{
++++++++Text("this+is+just+a+thing")
++++}
}|64252|并将其添加到我的循环中..|64253|++++++++++++if+0+<+viewModel.taskUpdates.count+{
++++++++++++++++Section(+"Chore+updates"){
++++++++++++++++++++ForEach(viewModel.taskUpdates,+id:\.id){+update+in
++++++++++++++++++++++++if+"complete"+==+update.statusType+{
++++++++++++++++++++++++++++NavigationLink+{
++++++++++++++++++++++++++++++++//CompletedTaskApprovalView()
++++++++++++++++++++++++++++++++SomeTestView()
++++++++++++++++++++++++++++}+label:+{
++++++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++++++if+"reject"+==+update.statusType+{
++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}|64254|工作正常。|64255|在上面的实例化中添加了一个参数(但不是在视图的结构定义中添加了一个)...它的行为与最初的问题一样--似乎无休止地挂起了构建和索引，并且从未出现我所期望的参数错误。|64256|++++++++++++if+0+<+viewModel.taskUpdates.count+{
++++++++++++++++Section(+"Chore+updates"){
++++++++++++++++++++ForEach(viewModel.taskUpdates,+id:\.id){+update+in
++++++++++++++++++++++++if+"complete"+==+update.statusType+{
++++++++++++++++++++++++++++NavigationLink+{
++++++++++++++++++++++++++++++++//CompletedTaskApprovalView()
++++++++++++++++++++++++++++++++SomeTestView(+fish:+"sandwich"+)
++++++++++++++++++++++++++++}+label:+{
++++++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++++++if+"reject"+==+update.statusType+{
++++++++++++++++++++++++++++Text(update.formattedMessage)
++++++++++++++++++++++++++++++++.padding(.vertical)
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}|64257|因此，这是奇怪的和100%25令人失望的。我在回避进一步的诊断，但是...如果有人还在遇到这个问题，试一试；仔细检查你的参数和声明，也许你会发现类似的问题。|64258|真奇怪。令人沮丧。令人困惑。很烦人。|64259|entityMap^0|0|1L|3|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|H|2|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1V|8|@$D|1W|E|1X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1Z|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|20|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|21|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|22|8|@]|9|@]|A|$]]|$1|U|3|V|5|L|7|23|8|@]|9|@]|A|$M|N]]|$1|W|3|X|5|6|7|24|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|25|8|@]|9|@]|A|$]]|$1|10|3|11|5|L|7|26|8|@]|9|@]|A|$M|N]]|$1|12|3|13|5|6|7|27|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|28|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|29|8|@]|9|@]|A|$]]|$1|18|3|19|5|L|7|2A|8|@]|9|@]|A|$M|N]]|$1|1A|3|1B|5|6|7|2B|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|L|7|2C|8|@]|9|@]|A|$M|N]]|$1|1E|3|1F|5|6|7|2D|8|@]|9|@]|A|$]]|$1|1G|3|1H|5|L|7|2E|8|@]|9|@]|A|$M|N]]|$1|1I|3|1J|5|6|7|2F|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|6|7|2G|8|@$D|2H|E|2I|F|G]]|9|@]|A|$]]|$1|1M|3|1N|5|L|7|2J|8|@]|9|@]|A|$M|N]]|$1|1O|3|1P|5|6|7|2K|8|@]|9|@]|A|$]]|$1|1Q|3|1R|5|6|7|2L|8|@]|9|@]|A|$]]|$1|1S|3|-4|5|6|7|2M|8|@]|9|@]|A|$]]]|1T|$]]

I know this is a pretty old question, but the issue still exists. Here's what I found experiencing this.
Inside a NavigationLink, I was giving a parameter to a View that didn't take one. It hung the build and indexing, but didn't kick a compiler error. That is NOT cool.
Here's how I reproduced it. Inside a top level view that contains a Navigation View, I had the following block inside a List inside a Stack. So my top level view's hierarchy was something like (pseudocode):
<pre><code>Body {
 VStack {
 [CustomViewForPageHeader]
 List {
 (the code block pasted below)
 (some other things)
 }
 }
}
</code></pre>
The offending part was this:
<pre><code> if 0 &lt; viewModel.taskUpdates.count {
 Section( &quot;Chore updates&quot;){
 ForEach(viewModel.taskUpdates, id:\.id){ update in
 if &quot;complete&quot; == update.statusType {
 NavigationLink {
 CompletedTaskApprovalView( update: update )
 } label: {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 if &quot;reject&quot; == update.statusType {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 }
 }
</code></pre>
Remembering that I had removed the parameter while restructuring some data, I was dismayed that the compiler didn't puke on this. I commented out the whole line, so it looked like:
<pre><code> if 0 &lt; viewModel.taskUpdates.count {
 Section( &quot;Chore updates&quot;){
 ForEach(viewModel.taskUpdates, id:\.id){ update in
 if &quot;complete&quot; == update.statusType {
 NavigationLink {
 //CompletedTaskApprovalView( update: update )
 } label: {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 if &quot;reject&quot; == update.statusType {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 }
 }
</code></pre>
And lo and behold, whammo, it worked just fine.
Uncommented it and removed the parameter...
<pre><code> if 0 &lt; viewModel.taskUpdates.count {
 Section( &quot;Chore updates&quot;){
 ForEach(viewModel.taskUpdates, id:\.id){ update in
 if &quot;complete&quot; == update.statusType {
 NavigationLink {
 CompletedTaskApprovalView()
 } label: {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 if &quot;reject&quot; == update.statusType {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 }
 }
</code></pre>
whammo, redux, again, worked fine.
I had everything stripped out of the CompletedTaskApprovalView while I was reworking the data model a little bit, so it looks like this (literally just a place holder):
import SwiftUI
<pre><code>struct CompletedTaskApprovalView: View {
 
 var body: some View {
 Text(&quot;Approve chores&quot;)
 .font(.title)
 }
}
</code></pre>
The compiler never should have let me try to hand it a parameter. So I thought that was weird, and I wondered if my view's code file had some kind of funky non-visible corruption. Inside the top level view's file, I added a new view (SomeTestView) at the bottom...
<pre><code>struct SomeTestView: View {
 var body: some View {
 Text(&quot;this is just a thing&quot;)
 }
}
</code></pre>
and added it to my loop..
<pre><code> if 0 &lt; viewModel.taskUpdates.count {
 Section( &quot;Chore updates&quot;){
 ForEach(viewModel.taskUpdates, id:\.id){ update in
 if &quot;complete&quot; == update.statusType {
 NavigationLink {
 //CompletedTaskApprovalView()
 SomeTestView()
 } label: {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 if &quot;reject&quot; == update.statusType {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 }
 }
</code></pre>
Works fine.
Added a parameter to the instantiation above (but did NOT add one to the view's Struct definition)... and it behaved the same as the original issue - hung up the build and the indexing, seemingly endlessly, and never puked the parameter error I'd expect.
<pre><code> if 0 &lt; viewModel.taskUpdates.count {
 Section( &quot;Chore updates&quot;){
 ForEach(viewModel.taskUpdates, id:\.id){ update in
 if &quot;complete&quot; == update.statusType {
 NavigationLink {
 //CompletedTaskApprovalView()
 SomeTestView( fish: &quot;sandwich&quot; )
 } label: {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 if &quot;reject&quot; == update.statusType {
 Text(update.formattedMessage)
 .padding(.vertical)
 }
 }
 }
 }
</code></pre>
So that's freaky and 100% disappointing. I'm steering clear of diagnosing it further, but... if anyone is still running into this, give that a try; check out your parms and declarations carefully, and maybe you'll find a similar hiccup.
Weird. Frustrating. Confusing. Annoying.

A project I've been working for 2 months stopped working for no reason because Xcode got stucked on "Indexing". I can't Build the project anymore. If I try to build, Xcode freezes and I have to force quit. This happens only with this project.

I tried cleaning all derived data but didn't help.

I'm using Xcode 4.5.2.

Any ideas?

Xcode stuck on Indexing

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我已经工作了两个月的一个项目无缘无故地停止了工作，因为Xcode被“索引”卡住了。我不能再做这个项目了。如果我尝试构建，Xcode就会冻结，我必须强制退出。这种情况只会发生在这个项目中。我试着清理所有派生的数据，但没有帮助。我使用的是Xcode 4.5.2。有什么想法吗？

问Xcode停滞在索引上
EN

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