(Xcode) - ' iPhone is busy: Prep

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解决办法

一（喝茶等的建议）：

等～～～

二

升级Xcode，如果有的话。

三（手贱升级iPhone，又想工作的建议）：

来自stackoverflow: Jayprakash Dubey

1.Go to Windows → Devices and Simulators (Shortcut key: cmd+shift+2)

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2.You’ll see iPhone device connected to system with message

iPhone is busy: Preparing debugger support for iPhone

3.Click on plus button (+) present in bottom-left corner.

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4.This will show the device connected to system. Click on Next button.

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5.Thereafter you’ll see ‘device setup was successful’. Click on Done button.

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Solution 3 worked for me!