"Application is not installed on your phone " Problem while launching android app

Problem :: While launching the android app in emulator, when clicking the app icon to run the application in emulator, I couldnot run the app. The pop up comes stating "Application is not installed on your phone".

Cause :: This problem occurs if u have the duplicate Activity in the App Manifest file. For eg. The SplashScreenActivity has duplicate entry in Manifest file.

Solution :: Make sure u have declared single Activity class in Manifest file.

:)