blocks|key|128027|text|这种情况通常发生在您的代码中出现编译器错误时，编辑器无法计算或处理这些错误。所以它坠毁了。不幸的是，解决这个问题的唯一方法是找出这段代码并修复它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|128028|当斯威夫特找不出我的一个变量的类型时，我就出现了这种情况。|128029|这个答案也值得一看。|offset|length|128030|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/38334815/3539959^0|0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

This generally happens when you have a compiler error in the code that the editor can't figure out or handle. So it crashes. Unfortunately, the only way to fix this is to find out the piece of code and fix it.

I had this when Swift could not figure out the type for one of my variables.

<a href="https://stackoverflow.com/a/38334815/3539959">This answer</a> is worth checking out as well.

blocks|key|245868|text|我用-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245869|将我的Mac升级到MacOS+High|ordered-list-item|245870|删除Xcode|245871|从AppStore安装了新的Xcode|245872|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|M|8|@]|9|@]|A|$]]|$1|G|3|H|5|D|7|N|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|O|8|@]|9|@]|A|$]]]|J|$]]

I fixed this issue by-

<ol>
<li>updating my Mac to MacOS High Siera</li>
<li>deleted Xcode</li>
<li>installed new Xcode from AppStore</li>
</ol>

blocks|key|245892|text|我也面临着同样的问题。并通过更新命令行工具和/或删除未使用/旧的Xcode版本来解决问题，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245893|转到Xcode+Preferences+>+Locations，|offset|length|style|BOLD|245894|将命令行工具更新为Xcode+9.0|ordered-list-item|245895|删除派生数据|245896|另外，删除旧的Xcode版本|245897|重启Mac|245898|entityMap^0|0|8|N|0|9|9|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|W|8|@$D|X|E|Y|F|G]]|9|@]|A|$]]|$1|K|3|L|5|J|7|Z|8|@]|9|@]|A|$]]|$1|M|3|N|5|J|7|10|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|11|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|R|$]]

I faced the same issue. And solved by updating Command Line Tools and/or deleting unused/older Xcode versions,

Go to Xcode Preferences > Locations,

<ol>
<li>Update Command Line Tools to Xcode 9.0</li>
<li>Delete derived data</li>
<li>Additionally, delete older Xcode versions</li>
<li>Restart Mac</li>
</ol>

blocks|key|1881035|text|当Interface出错时，此错误是一个普遍错误。不幸的是，错误本身并没有指向特定的原因。它有时是工具中的错误，有时是OS中的错误，有时是开发人员代码中的错误，有时是用户配置中的错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881036|常见的原因包括：|1881037|文件上设置的权限/所有权不正确。|unordered-list-item|1881038|手动删除~/Library/Developer中的文件。|1881039|安装buggy的第三方kexts+(特别是安全或防火墙软件)。|1881040|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|P|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|Q|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|L|$]]

This error is a general error when something goes wrong with Interface Builder. Unfortunately, the error itself does not point to a specific cause. It is sometimes an error in the tools, sometimes an error in the OS, sometimes an error in developer code, and sometimes an error in user configuration.

Common causes include:

<ul>
<li>Incorrect permissions / ownership set on files.</li>
<li>Manually deleting files in ~/Library/Developer.</li>
<li>Installing buggy 3rd party kexts (especially security or firewall software).</li>
</ul>

blocks|key|1881082|text|经过几次尝试，我终于在这里修好了。Xcode-select指向错误版本的Xcode+(此处指向Xcode+8.3.3)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881083|检查，使用|1881084|xcode-select+-p|code-block|syntax|javascript|1881085|若要改变，请使用|1881086|sudo+xcode-select+--switch+/Applications/Xcode.app/Contents/Developer|1881087|当使用Xcode+9实例时，当xcode-select指向Xcode+8版本时，似乎会出现这个问题。如果您需要再次使用Xcode+8.x，请不要忘记切换回。|1881088|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

After quite some tries I was able to fix it here. Xcode-select was pointing to a wrong version of Xcode (here pointing to Xcode 8.3.3).

To check, use

<pre><code>xcode-select -p
</code></pre>

To change, use

<pre><code>sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
</code></pre>

The problem seems to occur when using a Xcode 9 instance while xcode-select points to a Xcode 8 version.
In case you need to use Xcode 8.x again, don't forget to switch back.

blocks|key|128137|text|您可以在问题报告中找到问题，只需单击报告错误并打开log.txt文件即可找到问题。在我的例子中，我设置了无效的表行高度。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|128138|​|128139|📷|atomic|offset|length|128140|128141|128142|128143|128144|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/61998346f7c2055ecee3ca14e2148201.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/9ecbd573c5f1af2304997c43a3fdf4d7.png^0|0|0|0|1|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Z|8|@]|9|@$G|10|H|11|1|12]]|A|$]]|$1|I|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|J|3|C|5|6|7|14|8|@]|9|@]|A|$]]|$1|K|3|E|5|F|7|15|8|@]|9|@$G|16|H|17|1|18]]|A|$]]|$1|L|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T|U|-4]]|V|$5|P|Q|R|A|$S|W|U|-4]]]]

You can find the issue in Problem Report, just clink on report a bug and open the log.txt file where you can find the issue. In my case i set invalid table row height. 

<a href="https://i.stack.imgur.com/ZxY5Q.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ZxY5Q.png" alt="enter image description here"></a>

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

blocks|key|1881155|text|当它发生在我身上的时候，我的配置就像，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881156|操作系统:+macOS塞拉利昂版10.12.6+Xcode+:+9.0|1881157|我已经创建了新的项目和开放的故事板，这个错误是存在的。|1881158|解决方案:我只是退出xcode并重新启动，错误不是这样的。|1881159|所以，它只需要重新启动xcode！|1881160|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

When it was happen to me at that time I have configuration was like,

OS : macOS Sierra Version 10.12.6
Xcode : 9.0

I have created new project and open storyboard and this error was there.

Solution : I just quit the xcode and start again and error was not that. 

So, it's just requires restart of xcode!

blocks|key|129101|text|我也面对过这个问题。解决方案非常简单，只需删除xcode的派生数据并重新启动xcode。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|129102|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 have also faced this issue.
 Solution is very simple just delete the derived data of xcode and restart the xcode.

blocks|key|246097|text|大多数情况下，当您打开2种不同版本的Xcode时，就会出现此错误。解决方案:请同时关闭Xcode和清除驱动的data.now，一次使用一个Xcode。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246098|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|$]]

Mostly this error occurred when you have open 2 different version of Xcode.
Solution: Please close both Xcode and clear drived data.now again try, use one Xcode at a time

blocks|key|246113|text|Xcode+9.3
空故事板/新项目
macOS高塞拉10.13.4|type|blockquote|depth|inlineStyleRanges|entityRanges|data|246114|就我的情况而言，当我从工作区打开一个故事板时，就会发生这种情况。|unstyled|246115|所以我摆脱了工作空间和cocoapods。然后，只需为第三方库使用xcode项目和迦太基。故事板打开得更快，没有这个错误。|offset|length|246116|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Carthage/Carthage^0|0|0|15|3|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|S|8|@]|9|@$G|T|H|U|1|V]]|A|$]]|$1|I|3|-4|5|D|7|W|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<blockquote>
 Xcode 9.3
 
 Empty Storyboard/ new project
 
 macOS High Sierra 10.13.4
</blockquote>

For my case, this happens when I open a storyboard from a workspace.

So I got rid of workspace and cocoapods. Then just use xcode projects and <a href="https://github.com/Carthage/Carthage" rel="nofollow noreferrer">carthage</a> for thirdparty libraries. Storyboards open faster and without this error.

blocks|key|1881304|text|通过命令或首选项两种方式丢弃派生数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881305|rm+-rf+~/Library/Developer/Xcode/DerivedData/|code-block|syntax|javascript|1881306|或|1881307|Xcode+->+Preferences+->+Location+->+Derived+Data|1881308|​|1881309|📷|atomic|offset|length|1881310|在Xcode菜单中，转到产品，清除项目。|1881311|1881312|1881313|1881314|断开连接的设备，重新启动Xcode和系统。|1881315|1881316|1881317|1881318|更多：https://www.e-learn.cn/content/wangluowenzhang/266937|1881319|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/dd30b18131990e9613feaff3f365a967.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/08ed8d32b51c977752768a5bf38af4c1.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/6beed6d9cf5228cdf27a05c77a9aa6b9.png|3|LINK|MUTABLE|url|https://www.e-learn.cn/content/wangluowenzhang/266937^0|0|0|0|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|0|1|2|0|0|3|1H|3|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1M|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1N|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|1O|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|1P|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1Q|8|@]|9|@$P|1R|Q|1S|1|1T]]|A|$]]|$1|R|3|S|5|6|7|1U|8|@]|9|@]|A|$]]|$1|T|3|L|5|6|7|1V|8|@]|9|@]|A|$]]|$1|U|3|N|5|O|7|1W|8|@]|9|@$P|1X|Q|1Y|1|1Z]]|A|$]]|$1|V|3|L|5|6|7|20|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|21|8|@]|9|@]|A|$]]|$1|Y|3|L|5|6|7|22|8|@]|9|@]|A|$]]|$1|Z|3|N|5|O|7|23|8|@]|9|@$P|24|Q|25|1|26]]|A|$]]|$1|10|3|L|5|6|7|27|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|28|8|@]|9|@$P|29|Q|2A|1|2B]]|A|$]]|$1|13|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|1A|1B|-4]]|1C|$5|16|17|18|A|$19|1D|1B|-4]]|1E|$5|16|17|18|A|$19|1F|1B|-4]]|1G|$5|1H|17|1I|A|$1J|1K]]]]

Trash derived data by two ways either by command or Preferences. 

<pre><code>rm -rf ~/Library/Developer/Xcode/DerivedData/
</code></pre>

or

<pre><code>Xcode -&gt; Preferences -&gt; Location -&gt; Derived Data
</code></pre>

<img src="https://i.stack.imgur.com/Yt5Nm.png" alt="screenshot 1"> 

In Xcode menu go to product clear the project.

<img src="https://i.stack.imgur.com/H4FOS.png" alt="screenshot 2">

Disconnect connected device and restart Xcode and system.

<img src="https://i.stack.imgur.com/FpjnH.png" alt="screenshot 3">

More: <a href="https://www.e-learn.cn/content/wangluowenzhang/266937" rel="noreferrer">https://www.e-learn.cn/content/wangluowenzhang/266937</a>

blocks|key|246209|text|我刚刚通过以下步骤解决了出现在我的xcode+9.3.1上的相同错误，|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|246210|清理项目|ordered-list-item|246211|退出xocde|246212|从项目文件夹中删除生成文件夹|246213|再开|246214|entityMap^0|H|B|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$]]|$1|I|3|J|5|H|7|U|8|@]|D|@]|E|$]]|$1|K|3|L|5|H|7|V|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|W|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|P|$]]

I just resolved the same bug which appear on my xcode 9.3.1 by following below step,

<ol>
<li>Clean the projects</li>
<li>Quit the xocde</li>
<li>Removed BUILD folder from project folder</li>
<li>Open again</li>
</ol>

blocks|key|246232|text|只需退出(如果需要的话)+Xcode并重新启动即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246233|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|$]]

Just quit (Forcefully if needed) the Xcode and start again.

blocks|key|128265|text|对我来说，只要退出Xcode，重新打开这个问题就可以了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|128266|Xcode+9.4.1
MacOS+High+Seirra+10.13.4|code-block|syntax|javascript|128267|entityMap^0|9|5|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

For me, Just quitting <code>Xcode</code> and open again solved this issue

<pre><code>Xcode 9.4.1
MacOS High Seirra 10.13.4
</code></pre>

blocks|key|128290|text|我也有这个问题，我尝试了这里提供的大多数解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|128291|最后，帮助我的是放弃Xcode+(版本10.1)并重新启动我的MacBook。|128292|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I also had this issue and I tried most solutions provided here.

In the end, what helped me was quitting Xcode (Version 10.1) and restarting my MacBook.

blocks|key|129183|text|我今天也有同样的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|129184|退出Xcode+&重启Mac解决了今天的问题，|129185|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I had the same issue today 

Xcode 10.1 ; Quit Xcode &amp; Restarting Mac Book fixed this issue for today,

blocks|key|128322|text|我在Xcode+10.2.1中也遇到了同样的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|128323|我有开放界面生成器(故事板)作为源代码，就像右键点击故事板文件所拍摄的附加屏幕一样。|128324|​|128325|📷|atomic|offset|length|128326|128327|遵循以下步骤|128328|更新版本3.0至3.5+<document+type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB"+version="3.0"|ordered-list-item|style|CODE|128329|再次打开故事板作为界面构建器|128330|它现在更新了，我现在没有错误，视图也是正确的。|128331|然而，当我恢复故事板的云杉代码时，版本又恢复到3.0。|128332|但是这样做可以使我重新振作起来，解决我的问题。|128333|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/f2fd73d6557fa9d6b436a8785c9f227a.png|imageAlt^0|0|0|0|0|1|0|0|0|0|C|2C|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|19|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1A|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1B|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1C|8|@]|9|@$I|1D|J|1E|1|1F]]|A|$]]|$1|K|3|E|5|6|7|1G|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1H|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1I|8|@$I|1J|J|1K|Q|R]]|9|@]|A|$]]|$1|S|3|T|5|P|7|1L|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1M|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1N|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1O|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]]|11|$12|$5|13|14|15|A|$16|17|18|-4]]]]

I was getting same issue in Xcode 10.2.1

I have open interface builder (Story board) as source code just like attached screen shot by right click on storyboard file

<a href="https://i.stack.imgur.com/y7KZP.png" rel="noreferrer"><img src="https://i.stack.imgur.com/y7KZP.png" alt="enter image description here"></a>

Followed below steps

<ol>
<li>Updated version 3.0 to 3.5 <code>&lt;document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0"</code></li>
<li>Open storyboard as interface builder again</li>
</ol>

Its get refreshed now and I was not getting error now and view was proper also

However when I revisted the spruce code of story board the version reverted to 3.0 again.

But this worked for as refresh and resolved my problem

blocks|key|129220|text|我得到了这个答案在日志里写着..。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|129221|异常名称:+NSInternalInconsistencyException异常原因:比例必须大于0|129222|其原因是，我一直在转换到黑暗模式，并使我的按钮等图标使用图像资产。原来，我有一个选项卡控制器，它所指向的页面还没有将其图标设置为资产目录图像。|129223|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|$]]

Just FYI, I got this answer and in the log it said...

Exception name: NSInternalInconsistencyException
Exception reason: scale must be > 0

The reason turned out to be that I'd been converting to dark mode and making my button etc. icons using Image Assets. It turned out that I had a tab controller and the pages it was pointing to did not have their icons set to asset catalog images yet.

blocks|key|246382|text|只要退出项目和再次开放的故事板将与所有的设计控件。在我的案子里。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246383|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|$]]

Just Quit project and again open Story Board will ok with all the design controls. In my case .

blocks|key|246407|text|对于面临这个问题的所有其他人来说，删除派生数据没有运气，当您试图在元素和superview之间添加高宽比时，似乎存在一个错误。因此，当您添加纵横比约束，然后在将检查器中的第二个元素更改为superview之后，约束仍然在元素层次结构中，但是应该将其移动到查看层次结构，或者更好地添加从元素拖动到superview并选择等宽的纵横比约束。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246408|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 all others that is facing to this problem and had no luck deleting derived data, it seems there is a bug when you try to add aspect ratio between a element and superview. So when you add aspect ratio constraint and then after you change the second element in the inspector to superview, the constraint is still in the element hierarchy but it should be moved to view hierarchy or, better, add the aspect ratio constraint dragging from element to superview and selecting equal width.

blocks|key|1881578|text|检查图像密度。更改为72+more或更多。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881579|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|$]]

Check image density. Change to 72dpi or more.

blocks|key|1881626|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1881627|📷|atomic|offset|length|1881628|1881629|同样的问题，Xcode版本12.0+(12A7209)。苹果从Xcode+9到12并没有解决Storyboard的任何问题。|1881630|解决方案:重新打开你的项目。|1881631|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/496c09e3b475272da9f0810bcebb9e5f.jpg|imageAlt^0|0|0|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@$E|W|F|X|1|Y]]|A|$]]|$1|G|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|11|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]]]

<a href="https://i.stack.imgur.com/ZuFI2.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZuFI2.jpg" alt="enter image description here" /></a>
The same problem, Xcode Version 12.0 (12A7209). Apple from Xcode 9 to 12 didn't fixed no one problem with Storyboard.
Solution: Just Re-open your project.

blocks|key|246539|text|我今天在我的故事板上也遇到了同样的问题和错误。我的一个控制器只显示了一个黑色的背景和蓝色的轮廓。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246540|我把这个修正如下|246541|创建一个新控制器|ordered-list-item|246542|将旧(功能失调)控制器的视图复制到新控制器|246543|将视图连接到.swift文件中的各自出口。(当我将视图从旧的复制到新的控制器时，约束并没有丢失)|246544|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|P|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|Q|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|L|$]]

I faced the same problem and error in my storyboard today. One of my controllers was showing nothing but a black background and blue outlines.
I fixed this as follows
<ol>
<li>Create a new controller</li>
<li>Copy views from the old (dysfunctional) controller to the new controller</li>
<li>Connect views to their respective outlets in the .swift file. (Constraints weren't lost when I copied the views from the old to the new controller)</li>
</ol>

blocks|key|128451|text|步骤1)开放故事板作为源代码，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|128452|📷|atomic|128453|​|128454|步骤2)+--您将在顶部看到这一行，将version="3.0“更改为version="3.5”|128455|<document+type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB"+version="3.0"+toolsVersion="13122.16"+targetRuntime="iOS.CocoaTouch"+propertyAccessControl="none"+useAutolayout="YES"+useTraitCollections="YES"+useSafeAreas="YES"+colorMatched="YES"+initialViewController="BYZ-38-t0r">|code-block|syntax|javascript|128456|3)步骤3重新启动Xcode。|128457|希望这能帮到你。|128458|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/b53d782280f296a1311e6e5b5b640ade.png|imageAlt^0|0|4|0|0|1|0|0|0|0|4|0|0|0|5|0|0|8|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|I|3|J|5|6|7|1B|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|M|3|N|5|O|7|1F|8|@]|D|@]|E|$P|Q]]|$1|R|3|S|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|T|3|U|5|6|7|1J|8|@$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|V|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|W|$X|$5|Y|Z|10|E|$11|12|13|-4]]]]

Step 1) Open storyboard as source code as shown below:
<a href="https://i.stack.imgur.com/jJyDr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jJyDr.png" alt="enter image description here" /></a>
Step 2) You will see this line on top, change version=&quot;3.0&quot; into version=&quot;3.5&quot;
<pre><code>&lt;document type=&quot;com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB&quot; version=&quot;3.0&quot; toolsVersion=&quot;13122.16&quot; targetRuntime=&quot;iOS.CocoaTouch&quot; propertyAccessControl=&quot;none&quot; useAutolayout=&quot;YES&quot; useTraitCollections=&quot;YES&quot; useSafeAreas=&quot;YES&quot; colorMatched=&quot;YES&quot; initialViewController=&quot;BYZ-38-t0r&quot;&gt;
</code></pre>
3) Step 3 Restart Xcode.
Hope this will help you.

blocks|key|246568|text|我在使用Xcode+12.2时遇到了这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246569|在向我的故事板添加了一个UITabBarController之后，我开始得到这个错误。通过检查Xcode提供的日志，我发现它与选项卡条控制器有关，特别是因为拆分视图控制器不支持它作为详细视图。奇怪，因为我没有使用拆分视图控制器。|246570|=================================
++++ASSERTION:
=================================

Failed+to+update+scene+'ihF-5r-7AU,+uvd-WH-zGG,+Tgo-fH-4sa,+ExD-dD-O6v,+BUC-1K-8XU,+and+SVS-tP-wFU'+with+IBLayoutConstraint+(x120),+IBUIViewAutolayoutGuide+(x6),+UIButton+(x3),+UIImageView+(x2),+UILabel+(x14),+UINavigationItem+(x5),+UITabBarItem+(x2),+UITableView+(x3),+UITableViewCell+(x2),+UITableViewCellContentView+(x2),+UIView+(x15),+and+UIViewController+(x6).

Exception+name:+NSInvalidArgumentException
Exception+reason:+UITabBarController+is+unsupported+as+viewController+for+-[UISplitViewController+setViewController:forColumn:]+in+Primary+column|code-block|syntax|javascript|246571|最后，正如有人指出的那样，我检查了情节提要源代码代码，并发现了一些splitViewMasterSizeMetrics标签，每个标签标签来自我的选项卡条控制器。我删除了那些标签，像个魅力一样工作。我甚至不知道如何添加拆分视图引用，因为我从未在我的项目中使用过它|offset|length|style|BOLD|CODE|246572|所以我的看法是：|246573|检查你的日志|ordered-list-item|246574|如果仍然无法解决问题，请在故事板源代码上搜索与错误相关的任何事件。|246575|entityMap^0|0|0|0|D|B|X|Q|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@$K|12|L|13|M|N]|$K|14|L|15|M|O]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|16|8|@]|9|@]|A|$]]|$1|R|3|S|5|T|7|17|8|@]|9|@]|A|$]]|$1|U|3|V|5|T|7|18|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|X|$]]

I had this problem using Xcode 12.2
Some time after adding a UITabBarController to my storyboard, I started getting this error. Checking the log provided by Xcode, I figured out that it was related to the tab bar controller, specifically because it's not supported as detail view for split view controller. Weird, because I didn't use split view controller.
<pre><code>=================================
 ASSERTION:
=================================

Failed to update scene 'ihF-5r-7AU, uvd-WH-zGG, Tgo-fH-4sa, ExD-dD-O6v, BUC-1K-8XU, and SVS-tP-wFU' with IBLayoutConstraint (x120), IBUIViewAutolayoutGuide (x6), UIButton (x3), UIImageView (x2), UILabel (x14), UINavigationItem (x5), UITabBarItem (x2), UITableView (x3), UITableViewCell (x2), UITableViewCellContentView (x2), UIView (x15), and UIViewController (x6).

Exception name: NSInvalidArgumentException
Exception reason: UITabBarController is unsupported as viewController for -[UISplitViewController setViewController:forColumn:] in Primary column
</code></pre>
Finally, as someone pointed out, I checked the storyboard source code and found a few <code>splitViewMasterSizeMetrics</code> tags, one tag per tab from my tab bar controller. I deleted those tags and worked like a charm. I don't even know how that split view references were added as I've never used it on my project
So my take would be:
<ol>
<li>check your log</li>
<li>if you can't still figure out the problem, search on the storyboard source code for any occurrences related to the error</li>
</ol>

blocks|key|246619|text|退出Xcode，在不使用Rosetta的情况下重新打开它，一切都会好的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246620|​|246621|📷|atomic|offset|length|246622|246623|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/35c5425d54c3e4a537551fd15e5e1d97.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Quit Xcode and reopen it without using Rosetta and everything will be OK.
<a href="https://i.stack.imgur.com/NgSQV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NgSQV.png" alt="Xcode screenshot" /></a>

blocks|key|246657|text|我也有过同样的问题。非常老的项目和UI构建器只显示框并给出标度必须是>0错误。有一些旧的图形在用户界面中，少于72+dpi。删除这些/替换为72+dpi或以上和瞧。立刻一切都好起来了。做了通常的删除派生数据和重新启动，但这是解决办法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|246658|->检查小于72+dpi的图像并修复它们。|246659|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I had the same issue. Very old project and UI builder showing just boxes and giving the scale must be &gt; 0 error. Had some old graphics in the UI with less than 72 dpi. Deleted those / replaced them with 72 dpi or more and voila. Instantly everything was OK. Did the usual delete derived data and reboot and and and but this was the cure.
-&gt; Check images less than 72 dpi and repair them.

When I am opening my project in Xcode 9, getting above error for Storyboard and Launchscreen. 

Note: Cleaning derived data didn't help me.

Please have a look at the screenshot.

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

Xcode 9 Storyboard: an internal error occurred. editing functionality may be limited

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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当我在Xcode 9中打开我的项目时，在Storyboard和Launchscreen中获得更高的错误。注意:清理派生数据对我没有帮助。请看一下截图。​​

问Xcode 9童话板:发生内部错误。编辑功能可能受到限制
EN

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问Xcode 9童话板:发生内部错误。编辑功能可能受到限制EN