Android studio报错 No IDEA annotations attached to the JDK 1.8, some issues will not be found

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今天关掉AndroidStudio,再打开时出现“No IDEA annotations attached to the JDK 1.8, some issues will not be found”的警告

Android studio报错 No IDEA annotations attached to the JDK 1.8, some issues will not be found_第1张图片

并导致了运行时出现“Default Activity Not Found ”的问题,使项目无法运行,网上解决方法大多是重装AndroidStudio,或者就是将下图中改为nothing,但是并没有从根本上解决问题,所以查找了半天终于从简书上查找到了完美解决的办法,感谢大神的分享,然后我们进入正题吧Android studio报错 No IDEA annotations attached to the JDK 1.8, some issues will not be found_第2张图片

解决方案如下:
1.关闭Android Studio
2.前往 “C:\Users\UserName.android”目录,把“build-cache”删除
3.前往“C:\Users\UserName.AndroidStudio3.2\system”目录,删除以下目录
“caches”
“compiler”
“compile-server”
“conversion”
“external_build_system”
“frameworks”
“gradle”
“resource_folder_cache”
4.再次打开AndroidStudio!搞定

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