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Tomer Bahar1,336 Points
Emulator: Run/Debug configuration button shows a red X
After installing Android Studio I've notice that there is a red X sign on the Run/Debug configuration button. In the instructional video there wasn't red X.
When I clicked on the Run/Debug configuration button the red X was there in the left column. I've noticed that I didn't have an "Emulator" tab to click on, in the upper right area of the screen and in addition to that, at the bottom of the screen I saw the following warning:
"Warning: Default Activity not found"
I would love to get some clarification on the matters in order to proceed with the "Getting Started With the Android Emulator" class.
Muhamed Asil7,453 Points
If you see that error occur after upgrading your IDEA, upgrading Android Studio version, or Generating a new APK, you may need to refresh the IDE's cache.
File -> Invalidate Caches / Restart...