Duplicate class android.support.v4.app.INotificationSideChannel found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.IResultReceiver found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.ResultReceiver found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.ResultReceiver$1 found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)

Duplicate class android.support.v4.os.ResultReceiver$MyResultReceiver found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)
Duplicate class android.support.v4.os.ResultReceiver$MyRunnable found in modules core-1.3.1-runtime (androidx.core:core:1.3.1) and support-compat-27.1.1-runtime (com.android.support:support-compat:27.1.1)

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

# 在gradle.properties中添加入下代码后OK

android.enableJetifier=true

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原文链接：https://blog.csdn.net/s610344130/article/details/120172358