我正在开发一个项目。这在 Android studio 2.3.3 上运行良好，但是当我更新我的 Android Studio 3.0 时会发生什么？然后打开我的项目，然后它无法组装，并在错误日志下方发送给我。

错误日志

Error:Error converting bytecode to dex:
Cause: com.android.dex.DexException: Multiple dex files define Lorg/apache/commons/io/IOCase;
Error:com.android.dex.DexException: Multiple dex files define Lorg/apache/commons/io/IOCase;
Error:    at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:661)
Error:  at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:616)
Error:  at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:598)
Error:  at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
Error:  at com.android.dx.merge.DexMerger.merge(DexMerger.java:198)
Error:  at com.android.builder.dexing.DexArchiveMergerCallable.call(DexArchiveMergerCallable.java:61)
Error:  at com.android.builder.dexing.DexArchiveMergerCallable.call(DexArchiveMergerCallable.java:36)
Error:  at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
Error:  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
Error:  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
Error:  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
Error:  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Error:Execution failed for task ':app:transformDexArchiveWithDexMergerForDebug'.
> com.android.build.api.transform.TransformException: com.android.dex.DexException: Multiple dex files define Lorg/apache/commons/io/IOCase;

请不要重复，因为我已经尝试了以下所有内容

• 清理项目
• 重建项目
• 重新打开项目并清理和重建后删除项目中的 /.gradle 文件夹
• 重新打开项目并清理和重建后删除了 .gradle cash 文件夹

其他人认为我检查了下面的堆栈溢出问题及其答案，然后我也没有得到解决方案。

1. Question , 2. Question , 3. Question , 4. Question和 5. Question

Project level build.gradle file

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0'
        classpath 'com.google.gms:google-services:3.1.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

app level build.gradle file

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion '26.0.2'
    defaultConfig {
        applicationId "com.mypackage"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        // for render script to create blur image
        renderscriptTargetApi 18
        renderscriptSupportModeEnabled true

        multiDexEnabled true

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

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:cardview-v7:25.3.1'
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support:multidex:1.0.0'
    testCompile 'junit:junit:4.12'

    compile 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

    //google API
    compile 'com.google.firebase:firebase-auth:10.0.1'
    compile 'com.google.firebase:firebase-messaging:10.0.1'
    compile 'com.google.firebase:firebase-core:10.0.1'
    compile 'com.google.android.gms:play-services-auth:10.0.1'
    compile 'com.google.android.gms:play-services-places:10.0.1'
    compile 'com.google.android.gms:play-services-maps:10.0.1'

    //facebook SDK
    compile 'com.facebook.android:facebook-android-sdk:[4,5)'

    compile 'de.hdodenhof:circleimageview:2.1.0'
    compile 'com.github.bumptech.glide:glide:3.7.0'
    compile 'com.squareup.okhttp3:okhttp:3.4.2'
    compile ('org.apache.commons:commons-lang3:3.4'){
        exclude module: 'commons-io'
    }

    compile('net.yazeed44.imagepicker:imagepicker:1.3.0') {
        exclude module: 'cam2'
    }
}
apply plugin: 'com.google.gms.google-services'

请帮我解决这个问题。我可以知道你是否需要我这边的任何东西。帮助将不胜感激。提前致谢。

最佳答案

我同意 @CommonsWare在您的项目中还有另一个库也包含 commons-io。

有一个选项可以解决 gradle 依赖中的这个冲突问题。在您的应用级 build.gralde 文件中添加以下代码。

configurations.all {
    resolutionStrategy.dependencySubstitution {
        substitute module('org.apache.commons:commons-io:1.3.2') with module('commons-io:commons-io:1.3.2')
    }
}

原因是为什么 'org.apache.commons:commons-io:1.3.2' 是冲突检查这个堆栈溢出 question's answer .

Note:- To know more about apache commons collections and its different versions check this answer

关于android - 原因 : com. android.dex.DexException : Multiple dex files define Lorg/apache/commons/io/IOCase in Studio 3. 0，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47015038/