Go to path
%APPDATA%GoogleAndroidStudio4.1plugins and remove manually undesired plugins folders and/or
I had the same issue, removing the unsupported plugins in the the config folder fixed it (you can also remove the entire configuration folder, a new one will be re-created).
For linux, the new configuration path is:
There is also other non-configuration folders at the following paths:
I fixed it! Look like the uninstall button in the plugin GUI screen is just for decoration purpose only, the plugin is still in the
/Users/your_username/Library/Application Support/Google/AndroidStudio4.1/plugins. After removing the plugin folder manually everything is back to normal.