Application installation fails in play store When I was trying to install apps from google play store, it downloads and then pops the error,


  "Application installation failed".


I tried numerous ways described in websites and now the error doesn't pop but when downloading is finished, again it starts downloading. And it causes data loss only.

If there's a solution please let me know.
The android version in your phone is incompatible with the play store version. When we update play store, without updating android version, this error occurs.

Solution: 


  go to settings --> Apps --> Downloaded --> Google Play Store --> Uninstall Updates --> Click 'Ok'


When you uninstall updates it will be replaced with the factory version which is compatible with any android version.