Something happened and now I can not inherit not from one class lights up red. What to do?

Closed due to the fact that the essence of the issue is incomprehensible by the participants of katso , YuriSPb ♦ , Denis , post_zeew , HamSter 23 Oct '16 at 6:50 .

Try to write more detailed questions. To get an answer, explain what exactly you see the problem, how to reproduce it, what you want to get as a result, etc. Give an example that clearly demonstrates the problem. If the question can be reformulated according to the rules set out in the certificate , edit it .

  • And what does Android Studio say about the situation? Why? - post_zeew
  • Resolve cannot symble and offers to import sdk - elik
  • You have something fell off. Due to the fact that you no longer provided any information, you cannot advise anything other than rebooting and reinstalling everything you can. - Yuriy SPb ♦
  • and the android itself didn’t give me anything how to be something to try:? - elik
  • Check in the settings of the studio and the project all the way to Java and KFOR - YuriySPb ♦

1 answer 1

I hope no one will encounter this I will describe 2 methods

! 1 update your own by adding + to the end of your compile "com.android.support:appcompat-v7:22.0.0+" version

! 2 method Файл-> Invalidate кэшей / Restart

Cleaning / restoring a project Losing caches and restarting