Android Question problem with AppCompat

[NaimSadghi]

Hi, I got an error like this in B4A 10.2

I use appcompat 4.00

can any one handle my problem?

(Sorry, my native language is not English, so forgive me for any typographical errors.)

 

[Erel]

Please post the message as text, not screenshot.

Your app works fine here. Carefully follow the installation instructions and it will work: https://www.b4x.com/b4a.html