Android中“无法合并dex错误”

Question

Gradle文件和Android Manifest如下所示。我尝试了Stack Overflow上的所有解决方案。

获得此例外：

com.android.builder.dexing.DexArchiveMergerException：无法合并dex

App Gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.bharat.photoblog"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.google.firebase:firebase-auth:11.8.0'
    implementation 'com.google.firebase:firebase-storage:11.8.0'
    testImplementation 'junit:junit:4.12'
    implementation 'com.google.firebase:firebase-firestore:11.8.0'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.+'
    implementation 'de.hdodenhof:circleimageview:2.2.0'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'com.github.bumptech.glide:glide:4.6.1'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
    implementation 'com.android.support:design:26.1.0'
}


apply plugin: 'com.google.gms.google-services'

Project Gradle

buildscript {

    repositories {
        google()
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:3.1.0'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.bharat.photoblog">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.theartofdev.edmodo.cropper.CropImageActivity"
            android:theme="@style/Base.Theme.AppCompat" />
        <activity android:name=".LoginActivity" />

        <meta-data
            android:name="preloaded_fonts"
            android:resource="@array/preloaded_fonts" />

        <activity android:name=".RegisterActivity" />
        <activity android:name=".SettingActivity" />
    </application>

</manifest>

Answer 1

我认为appcompat-v7:26.1.0与Firebase 11.8.0不完全兼容尝试更新到appcompat-v7:27.0.2 ..我曾经遇到过这个问题，那就是解决方案

Answer 2

请更新： -

com.google.android.gms:play-services:11.2.2

至

com.google.android.gms:play-services:11.4.0。

然后 ：-

清理并重建项目。