How can I fix this error: You need to use a Theme.AppCompat theme (or descendant) with this activity

Question

I searched all internet web sites to fix this error, but I couldn\'t. I just want to create AlertDialog with two button Yes and No.

This is my code:

impo         


        

Answer 1

in your style.xml file add below code-

style.xml

also define theme like this in your activity

OR

clean project and run again..