[Android] Duplicate class android.support.v4.app.xxx

최근에 만든 프로젝트에서 발생한 에러이다.  간단하게 이미지 확대 기능을 위해 포토뷰를 사용하려고 했더니 아래와 같은 에러가 발생한다.

 

Duplicate class android.support.v4.app.INotificationSideChannel found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$1 found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$MyResultReceiver found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$MyRunnable found in modules core-1.10.1-runtime (androidx.core:core:1.10.1) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)

Go to the documentation to learn how to Fix dependency resolution errors.

 

 

해결방법은 의외로 간단하다.

gradle.properties

android.enableJetifier=true

이 한 줄을 추가해주면 된다.

 

검색해보니 이전에 쓰이던 Android Support 라이브러리에서 쓰이는 라이브러리들과 충돌이 발생하는 문제라고 한다.

해당 옵션의 자세한 내용은 디벨로퍼스에서 어렵지 않게 확인할 수 있었다.

https://developer.android.com/jetpack/androidx?hl=ko

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