AAPT error: resource drawable/… not found

Question

After recently upgrading my android studio, I am not able to build my project anymore.

Every time I execute a build, I am struck with the following error:

Answer 1

In my case I delete namespace declaration Duplicate like xmlns:android="http://schemas.android.com/apk/res/android" and i used Analyse -> inspect code tool to show the error in the log, and i resolve the error in other files xml in drawable resource.