参考文档，了解如何修复依赖解析错误。

* 在模块guava-26.0-android.jar（com. google. guava：guava：26.0-android）和guava-jdk5-17.0.jar（com. google. guava：guava-jdk5：17.0）中发现重复的类 *

我最初做了这个项目，使用谷歌的Cloud Vision API，一切都很好。但现在我无法解决这个依赖，这是集成Firestore所必需的。

implementation 'com.google.firebase:firebase-firestore:21.4.3'

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我已经尝试

implementation 'com.google.firebase:firebase-firestore:21.4.3' exclude module: 'com.google.gauva:gauva-jdk5:17.0'

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和

configurations {
    implementation.exclude module:'gauva-jdk5'
    all*.exclude group: 'com.google.guava', module: 'listenablefuture'
}

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和

implementation 'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava'
implementation 'com.google.guava:guava:26.0-android'

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和

android.useAndroidX=true//causes lot of errors, tried refactoring, but core error remained
android.enableJetifier=true//no effect

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正如StackOverflow，GitHub等上的大多数其他帖子所建议的那样。我也尝试过多次清理和构建。但到目前为止似乎没有任何工作。包括Firestore实现是经过验证的原因。应用程序build. gradle是

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"
defaultConfig {
    applicationId "com.google.sample.cloudvision"
    minSdkVersion 24
    targetSdkVersion 29
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
    buildTypes.each {
        it.buildConfigField 'String', 'API_KEY', "\"AIzaSyCuSEBxcK9n6_ojdCo6uUDFALdZL2w024Y\""
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}
configurations {
    implementation.exclude module:'gauva-jdk5'
    all*.exclude group: 'com.google.guava', module: 'listenablefuture'
}
}
dependencies {
implementation 'com.android.support:support-annotations:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'android.arch.lifecycle:extensions:1.1.1'
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.google.firebase:firebase-firestore:21.4.3' exclude module: 'com.google.gauva:gauva-jdk5:17.0'
testImplementation 'junit:junit:4.12'
//noinspection GradleCompatible
implementation 'com.android.support:appcompat-v7:27.0.2'
//noinspection GradleCompatible
implementation 'com.android.support:design:27.0.2'
implementation 'com.google.api-client:google-api-client-android:1.23.0' exclude module: 'httpclient'
implementation 'com.google.http-client:google-http-client-gson:1.23.0' exclude module: 'httpclient'
implementation 'com.google.apis:google-api-services-vision:v1-rev369-1.23.0' exclude module: 'com.google.gauva:gauva-jdk5:17.0'
//    implementation 'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava'
//    implementation 'com.google.guava:guava:26.0-android'
}

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项目build.gradle是

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
    jcenter()
    maven {
        url 'https://maven.google.com/'
        name 'Google'
    }
    google()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.6.3'
    classpath 'com.google.gms:google-services:4.3.3'
    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}
}
allprojects {
repositories {
    jcenter()
    mavenCentral()
    maven {
        url 'https://maven.google.com/'
        name 'Google'
    }
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

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初始错误日志如下所示
在模块core-1.0.0-runtime.jar中发现重复的类android.support.v4.app.INotificationSideChannel（androidx. core：core：1.0.0）和support-compat-27.0.2-runtime.jar（www.example.com：support-compat：27.0.2）在模块core-1.0中发现重复的类android.support.v4.app.INotificationSidebookel$Stub.0-runtime.jar（androidx. core：core：1.0.0）和support-compat-27.0.2-runtime.jar（www.example.com：support-compat：27.0.2）在模块核心中发现重复的类android.support.v4.app.INotificationSideProxy el$Stub$Proxy---@.0.0-runtime.jar（androidx. core：core：1.0.0）和support-compat-27.0.2-runtime.jar（www.example.com：support-compat：com.android.support 27.0.2）在模块core-1.0.0-runtime.jar（androidx. core：core：1.0.0）和support-compat-27.0.2-runtime.jar（www.example.com：support-compat：com.android.support 27.0.2）在模块core-1.0.0-runtime.jar（androidx. core：core：1.0.0）和support-compat-27.0.2-runtime.jar（www.example.com：support-compat：com.android.support（com. google. guava：guava：26.0-android）和guava-jdk5-17.0.jar（com. google. guava：guava-jdk5：17.0）在模块guava-26.0-android.jar中找到重复的类com. google. common. annotations. Gwt Compatiblecom.android.support（com. google. guava：guava-jdk5：17.0）重复的类com. google. common. annotations. Gwt在模块guava-26.0-android.jar中发现不兼容com.android.support（com. google. guava：guava-jdk5：17.0）在模块guava-26.0-android.jar中找到重复的类com. google. common. annotations. VisibleForTesting（com. google. guava：guava：26.0-android）和guava-jdk5-17.0.jarcom.android.support（com. google. guava：guava：26.0-android）和guava-jdk5-17.0.jar（com. google. guava：guava-jdk5：17.0）在模块guava-26.0-android.jar中发现重复的类com. google. common. base. AbstractIteratorcom.android.support（com. google. guava：guava-jdk5：17.0）在模块guava-26.0-android.jar中发现重复的类com.google.common.base.AbstractIterator$1com.android.support
gradle属性-> 5.6.4