Android Question AppCompat Not Found

[whaba]

i checked AppCompat v4.0 in Library.

same project 2 computers
Two computers the same project. One computer works fine on the other computer an error.
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/app/AppCompatActivity;


I saw that one computer in the compiled_resources folder has the AppCompat and a second computer does not.
Why does he not produce it?

 

[Erel]

Make sure to use the latest version of AppCompat. There should be a file named AppCompat.androidx.aar.

 

[Zeev Goldstein]

Make sure to use the latest version of AppCompat. There should be a file named AppCompat.androidx.aar.

both computers have the file
it is an internal library - both are updated to latest B4A version
the second has all apcompat files
the appcompat.android.aar is dated 18/8/2019
is this the latest?

 

[DonManfred]

the appcompat.android.aar is dated 18/8/2019
is this the latest?

No? If you install B4A (latest) you get a date of 14.12.2021

 

[Zeev Goldstein]

No? If you install B4A (latest) you get a date of 14.12.2021

I did not install new, the first one did, the second is an older installation that was updated to 11.20
I guess in that case i need to download the newer version, can you provide a link? Or another advise?
Thanks

 

[DonManfred]

can you provide a link?

appcompat.androidx.aar ist part of the B4A-Installation. It is a file in the INTERNAL-Library-folder
the downloadlink for B4A is here: https://www.b4x.com/b4a.html