Unable to start activity /com.google.android.ads.mediationtestsuite.activities.HomeActivity

[alokipandey]

[REQUIRED] Step 1: Describe your environment

Google Mobile version - implementation 'com.google.android.gms:play-services-ads:20.0.0'
Platform: Android (iOS, Android, Unity Editor) - Android
Platform OS version: Android 9,10
Any specific devices issue occurs on: all devices
Mediation ad networks used, and their versions:
implementation 'com.google.android.ads:mediation-test-suite:1.5.0'
implementation 'com.google.ads.mediation:facebook:6.3.0.1'

[REQUIRED] Step 2: Describe the problem

app is crashing with below details right after calling { MediationTestSuite.launch(this) } from activity
java.lang.RuntimeException: Unable to start activity ComponentInfo{/com.google.android.ads.mediationtestsuite.activities.HomeActivity}: android.view.InflateException: Binary XML file line #34 in /gmts_activity_home: Could not inflate Behavior subclass android.support.design.widget.AppBarLayout$ScrollingViewBehavior