多个dex文件在android studio中定义错误

时间:2015-04-27 16:56:21

标签: android xml android-studio

我是Android工作室的一个初学者,我试图用mysql和一个android数据库执行数据库同步。在遵循指南之后(它没有提到gradle的东西,所以我必须即兴发挥)我留下了波纹管错误 在搜索之后我被告知它可能是我的依赖,但到目前为止我还没看多少

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile files('libs/gson-2.2.2.jar')
    compile files('libs/android-support-v4.jar')
    compile files('libs/android-async-http-1.4.4.jar')
}

.idea文件夹中的库看起来像这样

libraries

android_async_http_1_4_4.xml
android_support_v4.xml
appcompat_v7_21_0_3.xml
gson_2_2_2.xml
support_annotations_21_0_3.xml
support_v4_21_0_3.xml

这是我得到的错误

Error:Execution failed for task ':app:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    /Applications/Android Developer Tools/sdk/build-tools/21.1.2/dx --dex --no-optimize --output /Volumes/Untitled/You copy/app/build/intermediates/dex/debug --input-list=/Volumes/Untitled/You copy/app/build/intermediates/tmp/dex/debug/inputList.txt
  Error Code:
    2
  Output:
    UNEXPECTED TOP-LEVEL EXCEPTION:
    com.android.dex.DexException: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompatIcs;
        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)

感谢您提供给我的任何帮助

2 个答案:

答案 0 :(得分:1)

Gradle知道如何解决依赖冲突。你可以在这里阅读:https://gradle.org/docs/current/userguide/dependency_management.html

所以错误不是因为appcompatsupport-v4冲突。

看起来你引用了libs文件夹中的两次库。

使用:

dependencies {
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile files('libs/gson-2.2.2.jar')
    compile files('libs/android-support-v4.jar')
    compile files('libs/android-async-http-1.4.4.jar') }

或:

dependencies {
   compile fileTree(dir: 'libs', include: ['*.jar'])
   compile 'com.android.support:appcompat-v7:21.0.3' 
}

但是,我建议您在引用support-v4

时引用gsonandroid-asyncappcompat-v7.

答案 1 :(得分:0)

问题:

Gradle依赖关系,AppCompatv7也会带来Supportv4。因此,只需删除Supportv4 .jar,因为您不小心添加了两次。

您的依赖项:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile files('libs/gson-2.2.2.jar')
    compile files('libs/android-support-v4.jar') // <-- remove jar
    compile files('libs/android-async-http-1.4.4.jar')
}

应该是:

我还将您的.jars升级为Gradle个依赖关系。

dependencies {
    compile 'com.android.support:appcompat-v7:22.0.0' // <-- upgraded
    compile 'com.google.code.gson:gson:2.3.1' // <-- upgraded to gradle dependency
    compile 'com.loopj.android:android-async-http:1.4.4' // <-- upgraded to gradle dependency
}