React-Native project stuck on :app:installDebug

you can kill & restart adb in your terminal

adb kill-server && adb start-server

and start

react-native run-android

Try to change the USB port of your physical device. That worked for me.

I was running this on an emulator and ran into this issue. Tried all of the solutions on this page and none worked. Also tried just shutting everything down and restarting it - no luck. This is what worked for me:

1) In android studio, go to the Android Device Manager

2) For the emulator I was using, select then grey down arrow on the far right

3) Wipe Data

Relaunch the app and it worked fine.