FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
&gt; 1 exception was raised by workers:
&nbsp; java.lang.RuntimeException: java.lang.RuntimeException: Duplicate class com.google.android.gms.internal.measurement.zzu found in modules classes.jar (com.google.android.gms:play-services-measurement-base:17.2.2) and classes.jar (com.google.firebase:firebase-analytics-impl:16.2.2)
....
이런 에러가 나는데 어떤걸까요,,,

뭔가 버전이 충돌이 있는 것 같은데요. 소스를 확인하시어 잘못된 곳을 찾아 보셔야 할 것 같습니다.
<a href="https://github.com/junsuk5/flutter_insta_clon" target="_blank" rel="noopener noreferrer">https://github.com/junsuk5/flutter_insta_clon</a>

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죄송합니다만 에러 관련해서 문의 드립니다