How to solve ADB error [INSTALL_FAILED_UID_CHANGED] on non-rooted phone?

Question

I get the error using the Android Studio (but I get the same if I use ADB from command line).

Every solution I found says that I need to delete the installation folder on the phone:

adb shell rm -r /data/data/com.example.my

but I get a permission denied error.

So what can I do on non rooted device?

(I can't delete the folder from device file browser, the folder /data is empty)

The app is not listed in the Android app manager

adb uninstall com.example.my 

gives

Failure

Answer 1

Unfortunately the only fix I have found for a non-rooted phone is to wipe the device and start again. The reason this is happening will be because the folder still exists with one file that wasn't deleted.

Answer 2

Why don't you uninstall the app using:

adb uninstall com.example.my

This question is related: Android INSTALL_FAILED_UID_CHANGED

Answer 3

Try this out

adb shell pm clear MY_PACKAGE_NAME

or maybe this:

adb install -l -r <'apk_name'>.apk -l = forward lock -r = reinstall