Android Question [Solved] error: resource android:attr/lStar not found.

Hi Guys and Gals....

For the first time ever I see this error :

B4X:

Organizing libraries.    (0.00s)
    (AndroidX SDK)
Compiling resources    (0.08s)
Linking resources    Error
c:\android\tools\..\extras\b4a_remote\androidx\core\core\1.7.0\unpacked-core-1.7.0\res\values\values.xml:113: error: resource android:attr/lStar not found.
error: failed linking references.

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And I've been searching high and low, downloading and copying resources and sdk tools, but the error doesn't go away!!!

The only thing diferent that I did was adding the FirebaseAuth lib and Manifest entries....