Missing essential plugin: org.jetbrains.android Please reinstall Android Studio from scratch macos在终端输入：
rm -Rf ~/Library/Preferences/AndroidStudio*
rm ~/Library/Preferences/com.google.android.studio.plist
rm -Rf ~/Library/Application\ Support/AndroidStudio*
rm -Rf ~/Library/Logs/AndroidStudio*
rm -Rf ~/Library/Caches/AndroidStudio*
Windows：删除config目录下的文件：
C:\Users\admin\.AndroidStudio4.0\config
