blocks|key|4611823|text|退出Xcode并重新构建Simulator.Then并运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4611824|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|$]]

Quit Xcode and Simulator.Then rebuild build and run.

blocks|key|4611856|text|在Xcode中，进入Xcode菜单->Open+Developer+Tool+-+IOS模拟器。选择模拟器，然后转到硬件->设备->管理设备。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4611857|如果故障设备显示在左列，请将其删除。然后从'%2B‘按钮添加回设备。如果它一开始就不存在，只需使用'%2B‘按钮添加即可。|4611858|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|$]]

In Xcode go to the Xcode menu->Open Developer Tool - IOS Simulators. Choose simulator and then go hardware->device->manage device. 

If the troubled device shows in the left column, delete it. Then add the device back from the '+' button. If it wasn't there in the first place, simply add it using the '+' button.

blocks|key|105333|text|重新启动电脑为我解决了这个问题。我很少重启，所以我通常不会想到这一点！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105334|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|$]]

Restarting the computer solved this for me. I restart very rarely so I would never normally have thought of this!

blocks|key|4611935|text|我不知道这对你们有什么帮助，但在我的例子中，当我已经打开模拟器窗口并尝试通过命令行调用模拟器来运行.app文件时，我遇到了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4611936|/Applications/Xcode.app/Contents/Developer/Applications/iOS\+Simulator.app/Contents/MacOS/iOS\+Simulator+-SimulateApplication+${pathToMyApp}/MyApp.app/MyApp|code-block|syntax|javascript|4611937|我只是退出了所有的模拟器窗口，并再次运行该命令。这解决了它。|4611938|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|$]]

I don't know if this is any help to you guys but in my case I had this issue when I had a simulator window already open and I tried the command line invocation of simulator to run a .app file.

<pre><code>/Applications/Xcode.app/Contents/Developer/Applications/iOS\ Simulator.app/Contents/MacOS/iOS\ Simulator -SimulateApplication ${pathToMyApp}/MyApp.app/MyApp
</code></pre>

I just quit all of my simulator windows and ran the command again. That fixed it.

blocks|key|4611947|text|也发生在我身上，运行一个xcrun+simctl+shutdown+<simulator+uid>并让模拟器再次工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4611948|entityMap^0|C|11|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|$]]

Happened to me also, run an <code>xcrun simctl shutdown &lt;simulator uid&gt;</code> and got the simulator working again.

blocks|key|4612002|text|在终端中，使用以下命令获取设备列表：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4612003|xcrun+simctl+list|code-block|syntax|javascript|4612004|这将显示您的“关闭”或“启动”的设备列表。你可能会看到你的设备处于“启动”状态。您可以使用以下命令将其关闭：|4612005|xcrun+simctl+shutdown+<simulator+id>|4612006|其中<simulator+id>是列表中设备的名称。例如：|offset|length|style|CODE|4612007|xcrun+simctl+shutdown+"iPhone+6+Plus"|4612008|entityMap^0|0|0|0|0|2|E|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

From terminal, get the list of devices with:

<pre><code>xcrun simctl list
</code></pre>

This will show you your list of devices with "Shutdown" or "Booted". You'll likely see your device is in a "Booted" state. You can shut it down with:

<pre><code>xcrun simctl shutdown &lt;simulator id&gt;
</code></pre>

Where <code>&lt;simulator id&gt;</code> is the name of the device in the list. For example:

<pre><code>xcrun simctl shutdown "iPhone 6 Plus"
</code></pre>

blocks|key|105469|text|我只是退出Xcode，然后删除所有派生的数据。然后重新启动Xcode并进行清理，构建它，等待它的索引完成，然后运行项目并解决问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105470|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 just quit the Xcode and then remove all derrived data. Then relaunch Xcode and do cleaning, build it wait for it's indexing complete then run the project and issue get resolved.

blocks|key|4612077|text|这将终止所有已启动/正在运行的模拟器，即使.app未显示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4612078|xcrun+simctl+shutdown+all|code-block|syntax|javascript|4612079|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|$]]

This will kill any booted/running simulators even if the .app is not shown:

<pre><code>xcrun simctl shutdown all
</code></pre>

blocks|key|105590|text|此解决方案对我有效。请转到Developer+Tool->+Simulator+->当模拟器启动时取消选中该选项启动最近使用的模拟器|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105591|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 solution worked for me
Go to Xcode -&gt; Open Developer Tool-&gt; Simulator -&gt; uncheck the option when simulator starts boot the most recently used simulator

blocks|key|105610|text|2022年修复|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105611|我找到了解决方案。模拟器->首选项->模拟器生存期:当模拟器启动时，我取消选中最近使用的模拟器。|105612|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|$]]

2022 fix
I found solution. Simulator -&gt; Preferences -&gt; Simulator lifetime: When Simulator starts boot the most recently used simulator I unchecked.

Any guess on "Unable to boot device in current state: Booted" error in Xcode6 beta while running (build+run) project in Simulator. I am just running my existing project in Xcode 6 I found above message. I tried cleaning, deleting of the derived data, even restarting the simulator doesn't work. Finally i restarted my Xcode 6 then it is working. Any simpler way to resolve the error instead of restarting your xcode6.

<img src="https://i.stack.imgur.com/orcuJ.png" alt="Screenshot for error">

Unable to boot device in current state: Booted

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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在模拟器中运行(build+run)项目时，Xcode6测试版中出现"Unable to boot device in current state: Booted“错误的任何猜测。我只是在Xcode6中运行我发现的上述消息的现有项目。我试着清理，删除派生的数据，甚至重启模拟器都不起作用。最后，我重新启动了我的Xcode...

问无法在当前状态下启动设备:已启动
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