这是一个熟悉而又陌生的错误，当年做的第一个React-Native项目就有这个错误，一直没有解决，今天又出现了，原因是我改了项目文件夹的名称，用Android Studio重新打开之后，就又出现了这个错误。
解决办法也很简单，直接删除.idea文件夹，用Android Studio重新打开项目再次编译即可。
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