Question

大家好我已经浏览了stackoverflow中的所有ans但仍未解决我的问题。这是我的gradle文件（app）。没有complile time error但是当我运行项目时出现错误。

    apply plugin: 'com.android.application'

    android {
        compileSdkVersion 21
        buildToolsVersion "21.1.2"

        defaultConfig {
            applicationId "com.example.android.animationsdemo"
            minSdkVersion 14
            targetSdkVersion 17
        }

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

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

        compile 'com.android.support:recyclerview-v7:21.0.+'
    }

错误： -

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)

Answer 1

将 defaultConfig 替换为 defaultConfig

，只需添加multiDexEnabled true

defaultConfig {
        applicationId 'com.example.android.animationsdemo'
        minSdkVersion 14
        targetSdkVersion 17
        multiDexEnabled true
    }

Answer 2

将此代码放入您的gradle中。

defaultConfig {
    multiDexEnabled = true
 }

Answer 3

在构建gradle中启用multidex。它应该位于构建gradle中，包含包名，版本名，代码等，而不在外部.gradle文件中。

添加

multiDexEnabled = true

在defaultConfig中

android

3 个答案: