Android Studio: Error:Execution failed for task ':app:dexDebug'

Question

我是第一次使用 Android Studio，导入项目后出现以下错误（之前是 eclipse 项目，我也有问题。）

给出的信息如下：

Error:Execution failed for task ':app:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    /home/crash-id/Development/SDK/adt-bundle-linux-x86_64-20140702/sdk/build-tools/21.1.2/dx --dex --no-optimize --output /home/crash-id/AndroidstudioProjects/LocalSin/app/build/intermediates/dex/debug --input-list=/home/crash-id/AndroidstudioProjects/LocalSin/app/build/intermediates/tmp/dex/debug/inputList.txt
  Error Code:
    2
  Output:
    UNEXPECTED TOP-LEVEL EXCEPTION:
    com.android.dex.DexException: Multiple dex files define Lcom/google/ads/AdRequest$ErrorCode;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:454)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:303)
        at com.android.dx.command.dexer.Main.run(Main.java:246)
        at com.android.dx.command.dexer.Main.main(Main.java:215)
        at com.android.dx.command.Main.main(Main.java:106)

:app:dexDebug
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Lcom/google/ads/AdRequest$ErrorCode;
    at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
    at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
    at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
    at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
    at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
    at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:454)
    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:303)
    at com.android.dx.command.dexer.Main.run(Main.java:246)
    at com.android.dx.command.dexer.Main.main(Main.java:215)
    at com.android.dx.command.Main.main(Main.java:106)


 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    /home/crash-id/Development/SDK/adt-bundle-linux-x86_64-20140702/sdk/build-tools/21.1.2/dx --dex --no-optimize --output /home/crash-id/AndroidstudioProjects/LocalSin/app/build/intermediates/dex/debug --input-list=/home/crash-id/AndroidstudioProjects/LocalSin/app/build/intermediates/tmp/dex/debug/inputList.txt
  Error Code:
    2
  Output:

    UNEXPECTED TOP-LEVEL EXCEPTION:
    com.android.dex.DexException: Multiple dex files define Lcom/google/ads/AdRequest$ErrorCode;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:454)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:303)
        at com.android.dx.command.dexer.Main.run(Main.java:246)
        at com.android.dx.command.dexer.Main.main(Main.java:215)
        at com.android.dx.command.Main.main(Main.java:106)



* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

应用 build.gradle 是这样的：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.myapp.test"
        minSdkVersion 11
        targetSdkVersion 14
    }

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

dependencies {
    compile 'com.android.support:support-v4:18.0.0'
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.google.android.gms:play-services:+'
    compile files('libs/google-play-services.jar')
    compile files('libs/httpcore-4.3.2.jar')
    compile files('libs/httpmime-4.3.4.jar')
}

项目built.gradle是这样的：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.0.0'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

您是否知道问题可能是什么以及如何解决？对这个问题的一个很好的解释也会很有用，因为我是 Android Studio 的新手。提前致谢:)

Answer 1

compile 'com.google.android.gms:play-services:+'
compile files('libs/google-play-services.jar')

我认为你应该删除其中的 1 行。

Answer 2

确保包名称在正在编译的项目中不重复

在中指出，在给定的项目中，不应该有多个具有相同命名空间的依赖项。在上面的例子中，Google Play Services 库被包含了两次，因此导致包名冲突。

同一项目中的多个模块（应用程序、库等）也可能发生同样的情况。因此，确保对于每个 AndroidManifest.xml 文件，package 名称在所有模块中都是唯一的：-

AndroidManifest.xml:

<manifest 
    xmlns:android="http://schemas.android.com/apk/res/android"
    package="this.must.be.unique.across.modules">

Answer 3

This happens because you are duplicating the library dependency inside of app build.gradle in android studio.

Android Studio 使用

自动为 libs 文件夹中的所有文件添加依赖项

compile fileTree(dir: 'libs', include: ['*.jar'])

或者在您的特定情况下，使用

添加依赖项

compile files('libs/google-play-services.jar')

^ 现在，当您尝试使用

再次添加依赖项时

compile 'com.google.android.gms:play-services:+'

你得到了错误。

解决方案

删除 "app build.gradle" 中添加的所有重复依赖项，你应该 go.In 你的案例删除

compile 'com.google.android.gms:play-services:+'

Answer 4

避免包含整个 gms 库：
compile 'com.google.android.gms:play-services:+'

相反，只需以这种方式使用所需的组件：

compile 'com.google.android.gms:play-services-ads:8.3.0'
compile 'com.google.android.gms:play-services-analytics:8.3.0'
compile 'com.google.android.gms:play-services-gcm:8.3.0'

Answer 5

我的 Android Studio Error:Execution failed for task ':app:dexDebug' 我通过将 multiDexEnabled 设置为 true

来解决它

defaultConfig {        
    // Enabling multidex support.
    multiDexEnabled true
}

我的项目中使用了太多的库，所以我超过了 Android 施加的 65K 方法 dex 限制有关更多信息，请参阅：http://developer.android.com/tools/building/multidex.html

Answer 6

我在 gradle 文件中有以下代码和同样的错误。

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.0'
    compile 'com.google.android.gms:play-services-ads:8.3.0'
}

dependencies {
    compile 'com.android.support:design:23.+'
}
dependencies {
    compile 'com.android.support:design:23.+'
}
dependencies {
    compile 'com.android.support:design:23.+'
}

删除了最后 3 个依赖项，现在可以正常使用了！

Answer 7

cd android/ && ./gradlew clean && cd .. && react-native 运行-android

Answer 8

删除c:\users\<username>\.gradle\caches\transforms-2\files-2.1\

中的所有文件

享受命令flutter run

Android Studio: Error:Execution failed for task ':app:dexDebug'

Android Studio: Error:Execution failed for task ':app:dexDebug'

android

android-build

dex

android-studio

确保包名称在正在编译的项目中不重复