Android_Install failed version downgrade
Just uninstall the application on your device first and then install the fresh one.
When you are installing via adb
you can pass -d
to allow version downgrade
adb install -d -r your.apk
-r
will also replace the existing app
Installation error: INSTALL_FAILED_VERSION_DOWNGRADE Please check logcat output for more details. Launch canceled!
I solved it by using the command prompt,navigating to project folder >adb uninstall package (you can get the package from Manifest.xml file).
In my case :D:\projectFolder\AndriodApp>adb uninstall com.example.app
Again launch the App in emulator or mobile.