Execution failed for task ':app:checkDebugDuplicateClasses'. > A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable > Duplicate class android.support.v4.app.INotificationSideChannel found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.os.IResultReceiver found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) 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-1.3.2-runtime (androidx.core:core:1.3.2) 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-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.os.ResultReceiver$1 found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) Duplicate class android.support.v4.os.ResultReceiver$MyResultReceiver found in modules core-1.3.2-runtime (androidx.core:core:1.3.2) 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-1.3.2-runtime (androidx.core:core:1.3.2) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1) * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
解决办法：
#需要在gradle.properties中添加代码 android.enableJetifier=true