failed linking references

[SalmaYassin]

Android resource linking failed
E:\and-nd-firebase-1.00-starting-point\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:2096: error: resource android:attr/fontStyle not found.
E:\and-nd-firebase-1.00-starting-point\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:2097: error: resource android:attr/font not found.
E:\and-nd-firebase-1.00-starting-point\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:2098: error: resource android:attr/fontWeight not found.
E:\and-nd-firebase-1.00-starting-point\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:2099: error: resource android:attr/fontVariationSettings not found.
E:\and-nd-firebase-1.00-starting-point\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:2100: error: resource android:attr/ttcIndex not found.
error: failed linking references.

[FakhruddinBadshah]

Add this to graddle properties
android.useAndroidX=true
android.enableJetifier=true
Then in build.gradle in app module
implementation 'androidx.appcompat:appcompat:1.0.0'
write this by replacing android support v7.....
and do the same in Main Activity import statment replace
import android support v7 with
import androidx.appcompat.app.AppCompatActivity;