problem installing over an app installed from google play
This error often occurs when you try to install an older version over an already-installed newer version of the same app. If that's really what you intend to do, you might first have to uninstall and then re-install the app in question. To not lose its data, you can try uninstalling via adb uninstall -k &lt;package&gt;: this would uninstall the app, but keep (-k) its data.

For further details, you might also wish to see:


Unknown error code during application install: “-25”