Flutter Integration Gradle Build failing

I am integrating auth0 1.5.0 in my Flutter app. I have a Github action running gradlew clean build that is now failing with this integration. The error messages are unclear. This is just a small sample of the failing tests. Anyone encounter this?

Task :auth0_flutter:testDebugUnitTest

com.auth0.auth0_flutter.Auth0FlutterAuthMethodCallHandlerTest > handler should only run the correct handler FAILED
java.lang.NoClassDefFoundError at Shadows.java:2408
Caused by: java.lang.ClassNotFoundException at SandboxClassLoader.java:154
Caused by: java.lang.IllegalArgumentException at ClassReader.java:189

com.auth0.auth0_flutter.Auth0FlutterAuthMethodCallHandlerTest > handler should result in ‘notImplemented’ if no matching handler FAILED
java.lang.NoClassDefFoundError at Shadows.java:2408
Caused by: java.lang.ClassNotFoundException at SandboxClassLoader.java:154
Caused by: java.lang.IllegalArgumentException at ClassReader.java:189

com.auth0.auth0_flutter.Auth0FlutterAuthMethodCallHandlerTest > handler should result in ‘notImplemented’ if no handlers FAILED
java.lang.NoClassDefFoundError at Shadows.java:2408
Caused by: java.lang.ClassNotFoundException at SandboxClassLoader.java:154
Caused by: java.lang.IllegalArgumentException at ClassReader.java:189

com.auth0.auth0_flutter.Auth0FlutterPluginTest > should set MethodCallHandler on onAttachedToEngine FAILED
java.lang.NoClassDefFoundError at Shadows.java:2408
Caused by: java.lang.ClassNotFoundException at SandboxClassLoader.java:154
Caused by: java.lang.IllegalArgumentException at ClassReader.java:189