I ran into this problem recently and was pleased to find a quick fix, courtesy of this comment by Itay Lev on StackOverflow. If you’re deploying an Android application and it says “Waiting For Debugger”, despite not running in Debug mode, open up a terminal/command prompt and run:
adb shell am clear-debug-app
This will clear the currently set debug application. It seems like sometimes it gets stuck expecting a debugger to be attached.