[android] react-native :app:installDebug FAILED

I couldn't get it to work with a hardware device. I kept getting the same error, but...

For your emulator you have to choose the IntelX86 Atom System image. Then ADB will connect to your emulator and it will properly install the installDebug.apk.

This is what I had to do.

Also look at this tutorial. It helped me immensely.

https://www.youtube.com/watch?v=cnqyUnASuk8