解决AndroidStudio项目运行Program type already present异常

解决AndroidStudio项目运行Program type already present异常

异常信息：
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
  ...
  Program type already present: android.support.v4.accessibilityservice.AccessibilityServiceInfoCompat$AccessibilityServiceInfoIcsImpl
  Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.

* 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.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s

问题原因: Program type already present，通常是重复加载了某个包，
我的问题是重复加载了，app/libs目录的android-support-v4.jar依赖包

解决方法：修改 app/build.gradle 文件
将
dependencies {
    implementation 'com.android.support:support-v4:23.4.0'
    implementation fileTree(dir: 'libs', include: ['*.jar'])
}
修改为
dependencies {
    implementation 'com.android.support:support-v4:23.4.0'
    implementation fileTree(dir: 'libs', include: ['*.jar'], exclude: ['android-support-v4.jar'])
}

本文地址：https://blog.csdn.net/xzlAwin/article/details/110531289