依赖冲突Program type already present

编译遇到的问题:

Program type already present
        at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:132)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:117)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:101)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:36)
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete
        at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:65)
        at com.android.tools.r8.utils.ExceptionUtils.withD8CompilationHandler(ExceptionUtils.java:43)
        at com.android.tools.r8.D8.run(D8.java:90)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:115)
        ... 2 more
Caused by: com.android.tools.r8.utils.AbortException: Error: Program type already present: pp.product.credit.bankcard.BankcardConstant$BankcardAutoPayStatus$Companion
        at com.android.tools.r8.utils.Reporter.failIfPendingErrors(Reporter.java:116)
        at com.android.tools.r8.utils.Reporter.fatalError(Reporter.java:74)
        at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:59)
        ... 5 more

Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
另外有篇文章很详细，记录下。
Android开发之——依赖冲突Program type already present