As it was discovered by several people in the Google Play Store -2 codec , and now I myself, the new release with minor changes will make the problem go away.
For future reference, the corresponding line in the device log is as follows:
04-28 19: 49: 24.629: W / Finsky (19249): [11195] com.google.android.finsky.receivers.aa.a (2975): IOException while copying my.package.name (my.package.name ): java.io.IOException: Output length overrun
After which it downloads the package file again, and then fails:
04-28 19: 49: 45.619: A / Finsky (19249): [1] com.google.android.finsky.installer.aq.a (168): Already streaming file my.package.name682140009.apk for my.package .name
04-28 19: 49: 45.619: A / Finsky (19249): com.google.android.flib.log.WhatATerribleException
04-28 19: 49: 45.619: A / Finsky (19249): at com.google.android.flib.log.ae (SourceFile: 107)
04-28 19: 49: 45.619: A / Finsky (19249): at com.google.android.finsky.utils.FinskyLog.e (SourceFile: 70)
04-28 19: 49: 45.619: A / Finsky (19249): at com.google.android.finsky.installer.aq.a (SourceFile: 168)
04-28 19: 49: 45.619: A / Finsky (19249): at com.google.android.finsky.receivers.z.onPostExecute (SourceFile: 3852)
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