构建失败 - 任务：应用程序：checkDebugDuplicateClasses FAILED

Question

我在我的 Android Studio Java 应用程序中使用 Unity 广告，然后我想迁移 Appodeal，Appodeal 支持 Androidx，我试图让我的应用程序 androidx，我编辑了很多文件，但我无法克服这个错误。 你能帮助我吗。 我在哪里做错了？

项目构建.Grandle

 // Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:4.1.2' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files classpath 'com.google.gms:google-services:4.3.3' } } allprojects { repositories { google() jcenter() maven { url 'https://maven.google.com'} maven { url "https://artifactory.appodeal.com/appodeal" } } } task clean(type: Delete) { delete rootProject.buildDir }

模块构建.Grandle

 apply plugin: 'com.android.application' android { compileSdkVersion 31 defaultConfig { applicationId "com.app.app" minSdkVersion 21 targetSdkVersion 31 versionCode 15 versionName '15' vectorDrawables.useSupportLibrary = true multiDexEnabled true } buildTypes { release { minifyEnabled true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } ndkVersion '23.0.7123448 rc1' buildToolsVersion '31.0.0 rc1' } dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') implementation 'androidx.appcompat:appcompat:1.4.0' implementation 'androidx.recyclerview:recyclerview:1.1.0' //noinspection GradleCompatible implementation 'com.google.android.material:material:1.0.0' implementation 'com.google.firebase:firebase-database:20.0.3' implementation 'com.google.android.gms:play-services-base:18.0.1' implementation 'com.google.android.gms:play-services-auth:20.0.1' implementation 'androidx.cardview:cardview:1.0.0' implementation 'de.hdodenhof:circleimageview:2.2.0' implementation 'com.squareup.picasso:picasso:2.3.1' implementation 'androidx.browser:browser:1.0.0' implementation 'androidx.annotation:annotation:1.0.0' implementation 'com.github.guilhe:circular-progress-view:1.2.1' implementation 'com.android.installreferrer:installreferrer:1.0' // implementation 'com.google.firebase:firebase-ads:17.1.1' implementation 'com.google.firebase:firebase-config:21.0.1' implementation 'com.appodeal.ads:sdk:2.11.0.+' implementation 'com.google.firebase:firebase-core:17.2.1' implementation 'com.google.firebase:firebase-messaging:20.0.0' implementation 'com.google.firebase:firebase-auth:19.1.0' // implementation 'com.android.support:multidex:2.0.3' } apply plugin: 'com.google.gms.google-services'

构建失败

 > Task:app:checkDebugDuplicateClasses FAILED Execution failed for task ':app:checkDebugDuplicateClasses'. > A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable > Duplicate class com.google.android.gms.internal.measurement.zzbj found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbk found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbl found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbm found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbn found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbo found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbp found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbq found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbr found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzbs found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzi found in modules jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzir found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzit found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zziu found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zziv found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zziw found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzix found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zziy found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zziz found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzj found in modules jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) and jetified-play-services-measurement-sdk-api-18.0.3-runtime (com.google.android.gms:play-services-measurement-sdk-api:18.0.3) Duplicate class com.google.android.gms.internal.measurement.zzja found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjb found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjc found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjd found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzje found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjf found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjg found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjh found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzji found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjj found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjk found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjl found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjm found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjn found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjo found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjp found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjq found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjr found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjs found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjt found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzju found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjv found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjw found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjx found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjy found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzjz found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzka found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkb found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkc found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkd found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzke found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkf found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkg found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkh found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzki found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkj found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkk found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkl found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.internal.measurement.zzkm found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.measurement.internal.zzfh found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.measurement.internal.zzgl found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzgm found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzgn found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzgo found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzgp found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzgq found in modules jetified-play-services-measurement-17.2.1-runtime (com.google.android.gms:play-services-measurement:17.2.1) and jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) Duplicate class com.google.android.gms.measurement.internal.zzhs found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1) Duplicate class com.google.android.gms.measurement.internal.zzhx found in modules jetified-play-services-measurement-base-18.0.3-runtime (com.google.android.gms:play-services-measurement-base:18.0.3) and jetified-play-services-measurement-impl-17.2.1-runtime (com.google.android.gms:play-services-measurement-impl:17.2.1)

Answer 1

听起来你的 Gradle 有问题，

尝试此类似答案中的步骤：

Go 到 gradle.properties（项目属性）

添加 android.enableJetifier=true

而且大多数时候 android.useAndroidX=true 存在。检查您的 gradle.properties(Project Properties) 如果它不存在，则添加 android.useAndroidX=true

Quote from that thread: If you want to use androidx-namespaced libraries in a new project, you need to set the compile SDK to Android 9.0 (API level 28) or higher and set both of the mentioned Android Gradle plugin flags to true.

android.useAndroidX：当此标志设置为 true 时，Android 插件使用适当的 AndroidX 库而不是支持库。 如果未指定，则默认情况下该标志为 false。

android.enableJetifier：当此标志设置为 true 时，Android 插件会自动迁移现有第三方库以通过重写其二进制文件来使用 AndroidX 依赖项。 如果未指定，则默认情况下该标志为 false。

任务 ':app:checkDebugDuplicateClasses' 执行失败。 离子4 Android