如何修复 Android Studio 中的类重复错误答案

【问题标题】：how to Fix Class duplication errors in Android studio如何修复 Android Studio 中的类重复错误
【发布时间】：2020-12-14 02:04:39
【问题描述】：

我正在尝试在 build.gradle 文件中添加 Firebase。但是，它似乎不起作用。这是我的 build.gradle 文件，下面是错误。我什至看了一些以前的堆栈溢出问题，但它们没有用，所以请帮帮我！

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
googleServices.disableVersionCheck = true
android {
    compileSdkVersion 29
    buildToolsVersion "30.0.1"

    defaultConfig {
        applicationId "com.teachbrowniesindia.textrecognizer"
        minSdkVersion 19
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.firebase:firebase-ml-vision:24.1.0'
    testImplementation 'junit:junit:4.13'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    implementation 'com.google.android.gms:play-services-ads:19.3.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}

错误

Duplicate class com.google.android.gms.internal.vision.zzf found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzg found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzh found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzi found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzv found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzw found in modules jetified-play-services-vision-20.0.0-runtime.jar (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime.jar (com.google.android.gms:play-services-vision-common:19.1.0)

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

【问题讨论】：

为了与 Firebase 分离，现在 ML Kit 提供了一个独立的 SDK，并将在未来更新独立版本。您能看看使用新的 SDK 是否可以解决您的问题吗？ developers.google.com/ml-kit/migration

标签： java android firebase android-studio firebase-mlkit

【解决方案1】：

目前的解决方法似乎是将firebase-ml-vision 降级为24.0.3

【讨论】：

【解决方案2】：

今后，ML Kit 将作为独立 SDK 提供。为避免此类问题，请按照migration guide 迁移您的应用。

【讨论】：