Flutter plugin not installed error; When running ‘flutter doctor’

Safe fix for Mac (Android Studio 4.1+). It is in a different directory now, but the symbolic link helps. Just run this command in the Terminal: ln -s ~/Library/Application\ Support/Google/AndroidStudio4.1/plugins ~/Library/Application\ Support/AndroidStudio4.1 If you have a different Android Studio version or an installation folder, adjust the command accordingly.