Android Failed to instantiate one or more classes

Question

I have a running project and all the xml files are showing me the error message Android Failed to instantiate one or more classes. The program still works.

Answer 1

Finally, after 4 days of facing the same error I resolved this on my own:

Click on

Build--> Make Build

and then

Refresh the layout.

Answer 2

In styles.xml,

Changing the theme from Theme.AppCompat.Light.DarkActionBar to Base.Theme.AppCompat.Light.DarkActionBar has worked for me.

Answer 3

In the build.gradle (Module: app) change the implementation of appcompat to a previous version by searching the developer.google

This is an error in the android framework usually happens in the alpha and beta appcompat versions.

Hope this helps.