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Development cannot be enabled while your drive is locked

When running my app on my device for debug, message is shown===========Development cannot be enabled while your drive is lockedPlease unlock your device and reattach.(0xE80000E2).===========<Env>Xcode: Xcode 8 beta 2iOS: iOS 10 beta 2What's the problem? T.T
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by ocworld.
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When "/tmp" and $TMPDIR directory are cleaned up in macOS?

When "/tmp" and $TMPDIR directory are cleaned up in macOS?I know about removing files and directories in /tmp directory in boot time. Is it right?In addition, are there other times in trying to clean up the directory?
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by ocworld.
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Why "service exit with abnormal code: 3" is occurred

I have wondering what the message means that is "service exit with abnormal code: 3".The error is written in my mac's system log file. It's plist id is one of the third party program's processes launched by launchd.I wanna to know about abnormal code "3". It is hard for me to find the code.Please, let me know about it.
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by ocworld.
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Why is it recommended that "don't provide app icons in ICNS or JPEG format."

Below url, it is written "Don't provide app icons in ICNS or JPEG format."https://developer.apple.com/macos/human-interface-guidelines/icons-and-images/app-icon/I have a question about why it is not allowed about .icns.My previous macOS app's app icons is in a icns file. is there any potential problem?
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by ocworld.
Last updated
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