Android Studio does not start anymore: Fatal error initializing '[…].FrameworkDetectionIndex'

Question

Android Studio doesn\'t start anymore. Last Friday everything was fine. I tried to reinstall AS and to reboot. I\'m using Mac OS X Yosemite. Here is the error message:

Answer 1

I deleted all the .jar-files in /Library/Java/Extensions/ (like described here: https://youtrack.jetbrains.com/issue/RUBY-16526) and it worked.