Activity class does not exist

Question

Aaaargh! I don\'t know what\'s going on, but suddenly I can\'t launch my app. I\'m using IntelliJ and I keep getting this error. I thought maybe there was a typo somewhere i

Answer 1

In Android Studio under Run->Edit Configurations check that the package name is correct in the Launch Activity box.

I had an issue with a capital letter in that box that wasn't in the package name.