I can't figure out what the problem is, i hope you can help me.
Error code:
Execution failed for task ':app:packageRelease'. java.io.IOException: Failed to create 'C:\Users\AnjaWin7xD\AndroidStudioProjects\Ortung\app\app-release.apk'
Try changing the destination folder for the app-release when generating the signed apk.That worked for me and I was able to generate the signed apk successfully.