- 不能构造apk
- File -> Invalidate Caches -> Invalidate.
- File -> Close Project.
- Remove the project from the AS project selector window.
- Quit from Android Studio
- Start AS and open project again
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R文件爆红.
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检查布局文件是否有报错
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如果你的项目比较大
1. Help -> Edit Custome Properties 2. idea.max.intellisense.filesize=99999
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