Application Installation Failed in Android Studio
Your APK file is missing . So , Clean Project >> Build APK >> Run the project .
If you use MIUI ROM
Go to the developer option and in that disable MIUI optimization.You will be asked to reboot your phone. Reboot it and then run the app.
For those who uses Xiaomi phones, follow these steps:
Settings-> Additional Settings-> Developer options
Turn off MIUI Optimization and reboot your phone
Last Disable verify app over USB
Your device will respond properly.
Also enable install via USB
Again in this issue also I found Instant Run buggy. When I disable the Instant run and run the app again App starts successfully installing in the Device without showing any error Window. I hope google will sort out these Issues with Instant run soon.
Steps to disable Instant Run from Android Studio:
File > Settings > Build,Execution,Deployment > Instant Run > Un-check (Enable Instant Run to hot swap code)