ADB IDEA: Start fail... Default Activity not found

[erdalgunes]

I have a multi-module project and this is what I get when I try to Start the app.

ADB IDEA: Start fail... Default Activity not found

I am on Android Studio Dolphin | 2021.3.1 RC 1. However, this was still an issue on the older versions.
I am on version 1.6.8.

I tried to look for a configuration to solve this issue but couldn't find anything.

[eygraber]

I'm having the same issue on Flamingo Canary 9

[OriMentesh]

Same on Electric Eel | 2022.1.1

[DSinge]

I opened an issue that I think is the cause of this: https://issuetracker.google.com/issues/269149838

Also, specifying the fully qualified name of the activity instead of the shorthand version in the library module's manifest seems to workaround this issue for me