Android Studio won't install a new APK - old one won't go away on phone

Question

My app won't update. It builds and runs but it's some old version and the changes I've made aren't counted. If I make a Toast for example, it won't show. If I delete an existing one, it will still show.

I've tried the following already:

• Updating Android Studio and updates in the SDK manager

• uninstalling the app off my phone and reinstalling

• cleaning

• make sure "Gradle-aware Make" is in run configurations

• File - invalidate caches

• make sure "Skip installation" is unticked.

• delete the build folder of the project and rebuilt

• adb shell pm clear com.packagename.app - "Success" but not fixed

• adb shell uninstall com.packagename.app - "Success" but not fixed

• Increase versionCode and versionName in build.gradle

• Change build variant

• Making a new project and copying the files

• Android Studio is installing old apk on device

I've tried doing it on another phone and it's stuck on an older version on that one too.

Answer 1

I had a similar problem with AndroidStudio Canary 2020.3.1 Canary 2.

In my case it helped to check Run/Debug Configurations/Always install with package manager.

(I might have missed some simple reason for this behaviour, though.)