blocks|key|589212|text|单击目标或项目>生成设置>架构>支持的平台:更改为iOS|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589213|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|$]]

Click to target or project > Build Settings > Achitecture > Supported Platforms : change to iOS

blocks|key|373746|text|对我来说起作用的是进入Window>Devices并按下左下角的加号按钮来添加一个设备，然后选择你想要添加的模拟器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|373747|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|$]]

What worked for me was going to Window>Devices and pressing the plus button at the bottom left to add a device and choose the simulator you want to add.

blocks|key|374059|text|当我从别人那里下载了一个项目，他们的部署目标是10.2，而我的Xcode没有完全更新，所以它只支持til+10.0时，我的问题就出现了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|374060|解决方案是：|374061|单击项目>>常规>>部署信息>>部署目标|374062|从那里，只需将它从一个灰色的数字更改为一个不是的数字。|374063|​|374064|📷|atomic|offset|length|374065|374066|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/cf578e1d8a333aa7f23cb3e0a5f71302.png|imageAlt^0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@$M|14|N|15|1|16]]|A|$]]|$1|O|3|I|5|6|7|17|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W|X|-4]]]]

The problem for me happened when I downloaded a project from someone else and their deployment target was like 10.2 and my Xcode wasn't fully updated so it only supported til 10.0.

Solution was :

Click on project >> General >> Deployment Info >> Deployment Target

From there just change it from a grayed out number to a number that it's not.

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

blocks|key|589272|text|别小题大作。我刚刚重启了Xcode+&+iOS模拟器。然后，它显示了所有的模拟器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589273|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|$]]

No big deal. I have just restarted the Xcode &amp; iOS simulator. Then, it displayed all the simulators.

blocks|key|373798|text|从time+machine恢复后，我必须重新安装8.1模拟器(设置>下载)，然后在“窗口>设备>%2B>添加模拟器”中添加模拟器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|373799|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|$]]

After restoring from time machine, I had to reinstall the 8.1 simulator (settings > Download) and then adding simulators in "Window > Devices > + > Add simulator"

blocks|key|373691|text|对于我来说，只需转到设置，选项卡“下载”并下载模拟器;)附加在更改的计算机(由TimeMachine转售)后，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|373692|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 me just go to Settings, tab "Downloads" and download the simulator ;)
Append after changed computer (resored by TimeMachine)
Regards,

blocks|key|373474|text|在Build+Settings下，验证是否在iOS+Deployment+Target下选择了有效的SDK。我的设置为7.1+(它出现在下拉列表中的另一个扇区)，但没有安装。选择7.0+(或者显然是下载7.1)就可以了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|373475|entityMap^0|M|L|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|$]]

Under Build Settings, verify that you have selected a valid SDK under <code>iOS Deployment Target</code>. Mine was set to 7.1 (which appeared in a different seciton in the dropdown) which wasn't installed. Selecting 7.0 (or obviously downloading 7.1) does the trick.

blocks|key|373874|text|发生在我身上的是，我使用一台安装了最新iOS+8.3的设备创建了一个项目。当我将这个项目移动到另一台没有设备的计算机上时，模拟器没有出现供我选择，只有设备(我没有)。原因是模拟器只增加到8.1+(显然低于8.3+)。因此，我在构建设置中将“Deployment>iOS开发目标”从8.3更改为8.1，模拟器如预期的那样出现在Xcode中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|373875|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|$]]

What had happened to me was that I created a project using a device that had the latest iOS installed, 8.3. When I moved that project to another computer without a device the simulators didn't appear for me to choose from, only the device (which I didn't have). The reason was that the simulators only went up to 8.1 (which is less than 8.3, obviously). So I changed the 'Deployment>iOS Development Target' to 8.1 (from 8.3) in Build Settings and the simulators appeared in Xcode as expected.

blocks|key|373937|text|现在，您只需将设备/模拟器从Product+->+Destination+->更改为选择设备即可。然后运行您的应用程序。enter+image+description+here|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|373938|entityMap|0|LINK|mutability|MUTABLE|url|http://i.stack.imgur.com/FUe05.png^0|1O|S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

for now you just change device/simulator from 
Product -> Destination -> pick the device.
Then Run your application.<a href="http://i.stack.imgur.com/FUe05.png" rel="nofollow">enter image description here</a>

blocks|key|589701|text|如果上述步骤都不起作用，请检查您的设备是否已插入并打开。(以上步骤对我都不起作用，设备已插入。哦，好吧。)但是，我使用的是Xcode7.3。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589702|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|$]]

When none of the above steps work, check to see that your device is plugged in and turned on. (None of the above steps worked for me, and the device WAS plugged in. Oh well.) However, I have Xcode 7.3.

blocks|key|589118|text|转到BuildSettings，请参阅代码签名...在Code+Signing+Identity下，将所有权利更改为"Don't+Code+Sign“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589119|希望能有所帮助。|589120|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|$]]

Go to BuildSettings, see Code Signing... under Code Signing Identity, change all entitlements to "Don't Code Sign".

Hope it helps.

blocks|key|589355|text|显然，我认为这是一个严重的问题。事实上，我通过从产品/目的地中选择丢失的iOS模拟器来修复它。毕竟没什么大不了的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589356|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|$]]

Obviously I thought that there was some kind of a serious issue. In fact I fixed it by selecting from Product/ Destination the iOS Simulator that was lost. No such big deal after all.

blocks|key|374124|text|要在xCode中添加模拟器，可以执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|374125|Windows+->+Devices|code-block|syntax|javascript|374126|在左下角，按加号按钮。通过这种方式，您可以根据需要添加不同的模拟器。|374127|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|$]]

What you can do to add Simulators in your xCode is go to 

<pre><code>Windows -&gt; Devices
</code></pre>

There on the bottom left, press the plus button. In this way you can add different simulators with OS as per you need.

blocks|key|589937|text|不管怎样，我的问题似乎是我同时运行了两个不同版本的xcode+(8.2和9.2)。Xcode可能会抓取模拟器列表，并将其作为资源，将其锁定并使其不可用于其他版本的xcode，以避免出现问题。我杀死(cmd%2Bq)了两个xcode实例，重新启动了我需要的实例，然后模拟器再次出现。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|589938|希望这对其他人有帮助，因为我花了相当多的时间来解决这个问题，因为它是一个“断断续续”的问题。|589939|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|$]]

For what it's worth, my issue seemed to be that I had two different versions of xcode running at the same time (8.2 and 9.2). Xcode might grab a list of simulators and, as resources, lock them up and make them unavailable for other versions of xcode to avoid issues. I killed (cmd+q) both xcode instances, restarted the one I needed at that point, and then the simulators showed up again.

Hope this helps anyone else, since it took me quite a bit of time to figure this one out, since it was an 'on and off' kind of issue.

I just cloned a project into Xcode and am trying to run it in the simulator. However, my only option is iOS Device. This is unique to this project only and I don't know how to fix it. Anyone else run into this and know how to fix it?

<img src="https://imgur.com/lhO0Z.png" alt="screenshot">

Xcode only lets me run for an iOS device (no simulator)

Windows

Xcode

我刚刚将一个项目克隆到Xcode中，并试图在模拟器中运行它。然而，我唯一的选择是iOS设备。这是唯一的这个项目，我不知道如何解决它。还有没有人碰到这个问题，知道如何修复它？​​

问Xcode只允许我在iOS设备上运行(没有模拟器)
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