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

I have tried every suggestion i found, but couldnt solve the issue. After that i figured it out myself: The problem in my case was that i renamed the package. To make sure you dont get the error above, add the

  defaultConfig {

    applicationId "com.yourpackage.yourapplication"
  }

to your build.gradle file. Hope that helps.