I am trying to install a Plugin (Kotlin) in Android Studio 2.0 on Windows 7.
Easy Peasy - I go to Settings > Plugins > Install JetBrains plugin... > Kotlin > Click on Install > Wait for the download to finish, click the Restart > Wait for AS to restart > Check if plugin was installed in Plugins > List of plugins without Kotlin.
I already tried this multiple times, I downloaded the .zip from the Kotlin Website, tried to use this to install with Install plugin from disk... with the same result.
I tried to manually restart Android Studio (Clicked postpone in the popup).
I also tried to uninstall a plugin which I don't need anymore, I clicked uninstall, restartet Android Studio and it was still in the list of plugins.
I started Android Studio with administrator rights, tried to install the plugin with the same result.
If I click disable on the mentioned installed (but unused) plugin, restart, and it was still disabled. (Checkbox unchecked)
Edit: A complete reinstall did not solve the problem, neither the upgrade to the 2.1 beta version.
Using Android Studio 3.0 solved the problem.