Xcode bug 编译不报错, 运行时出现"This app could not be installed at this time."的信息:

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解决方案1：

可打开~/Library/Logs/CoreSimulator/ 路径下的文件: CoreSimulator.log
查看对应错误信息:

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错误信息: "无对应文件"!

可通过右键Products中的.app文件,show in finder

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删掉对应的运行过数据:

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重新运行即可.

解决方案2

Reset the simulator（重启模拟器）:

Hardware -> Erase All Content and Settings...

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Clean your project:
shift+cmd+K
shift+opt+cmd+K
This should fix the issue.
完成。

参考:
https://stackoverflow.com/questions/47760643/xcode-this-app-could-not-be-installed-at-this-time