Unknown attribute android:scaleType

Issue

This is the error. As shown in the image. This is not letting the app run. This happens when I set the compile sdk version to 33. What to do?

Thanks in advance.

Solution

You can either ignore it or upgrade to Android Studio - Dolphin; it is a known bug. I had literally hundreds of these Unknown Attribute errors in my project, but they went away when I upgraded to Dolphin v2021.3.1.

Here's a link to Google's issue tracker indicating it is resolved in Dolphin: https://issuetracker.google.com/issues/241460885

Answered By - shagberg