Unknown error code during application install: "-25" I uploaded an app to Google Play Store. But some users reported that they were able to download the app, but unable to install the app. They are getting the error


  Unknown error code during application install: "-25"


Why is this happening and what can I do to fix this error?
check to make sure that the versionCode of your new version is not lower then the one you have installed already.

For me this was what was causing the  "Installation error code: -25" error on samsung galaxy S3.