user3254126 user3254126 - 1 month ago 13
Android Question

Can not install my own generated apk

I updated my app and tested it on my device. Everything works fine if I test the app via the run button in eclipse but if I export it into an apk and try to install the apk it fails.

There is no error code or anything else, it just says the app has not been installed.

Any idea why this happens? I only changed a few things in my app: I removed the basegameutils lib from my app and migrated to the new api without basegameutils. Thats it (except for some bugfixes but that can not be the cause).

I did already restart eclipse and cleaned all projects mutiple times.

The target sdk is 22 and I am using newest system images and so on for that api level (my divce is a stock nexus 6 with 5.1.1 running). I also updated my build tools to 23.0.1 from 22.0.1 and removed the 22 version. Is this the cause?

I also tried to upload the apk in the dev console and there were no erros.

Thank you for your help.

EDIT:

The logcat output says the signature does not match the previously installed version.

If i try to install the current live version via the play store there is also an error message saying i can not install this app because another user already installed an incompatible version on this device (but i dont have it installed and i dont have multiple users on the device).

If i got to the app menu in the settings my app is shown at the bottom of the list but there is a note saying the app is not installed for the users. If i click on it all buttons are unclickable (so i can not uninstall it).

What is happening?

Answer

I found a solution but I still have no idea what caused the problem.

somewhere on my device my app was still installed even though it didnt show up in the app drawer and the play store told me the same. In the settings/apps menu my app was still present (as i mentioned in the edit of my original post) so i clicked on it. If you click on the menu button you can chose unisntall for all users which did the trick. now I can install my apk again.

I have no idea how this happened but there you go, i hope this helps.

EDIT:

I had the same problem as this guy had. the accepted answer over there is much nicer than my poorly foramtted text ;)

"You cannot install this app because another user has already installed an incompatible version on this device"