意外的顶级异常（react-native）

Question

我在构建项目时遇到了这个错误，它是一个 react-native android 项目：

UNEXPECTED TOP-LEVEL EXCEPTION : 
 com.android.dex.DexException: Multiple dex files define Landroid/support/v7/app/ActionBar$Callback;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
        at com.android.dx.command.dexer.Main.run(Main.java:230)
        at com.android.dx.command.dexer.Main.main(Main.java:199)
        at com.android.dx.command.Main.main(Main.java:103)

这是我的毕业作品：

`应用来自：“react.gradle” 申请自：“../../node_modules/react-native-vector-icons/fonts.gradle”

def enableSeparateBuildPerCPUArchitecture = false

def enableProguardInReleaseBuilds = false

机器人{ compileSdkVersion 23 buildToolsVersion "23.0.1"`

defaultConfig {
    applicationId "com.movieproject"
    minSdkVersion 16
    targetSdkVersion 22
    versionCode 1
    versionName "1.0"
    ndk {
        abiFilters "armeabi-v7a", "x86"
    }
}
signingConfigs {
    release {

    }
}
splits {
    abi {
        reset()
        enable enableSeparateBuildPerCPUArchitecture
        universalApk false  // If true, also generate a universal APK
        include "armeabi-v7a", "x86"
    }
}
buildTypes {
    release {
        minifyEnabled enableProguardInReleaseBuilds
        proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
    }
}
// applicationVariants are e.g. debug, release
applicationVariants.all { variant ->
    variant.outputs.each { output ->
        // For each separate APK per architecture, set a unique version code as described here:
        // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
        def versionCodes = ["armeabi-v7a":1, "x86":2]
        def abi = output.getFilter(OutputFile.ABI)
        if (abi != null) {  // null for the universal-debug, universal-release variants
            output.versionCodeOverride =
                    versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
        }
    }
}

}

dependencies { compile fileTree(dir: "libs", include: ["*.jar"]) compile "com.android.support:appcompat-v7:23.0.1" compile "com.facebook.react:react-native:+" // From node_modules compile project(':react-native-vector-icons') compile project(':react-native-share') }

我已经安装了所有需要的依赖项（谷歌存储库，...），删除了构建文件夹，但我总是收到这个错误。

如果您有任何链接或提示，谢谢！而且我不能发布唯一的代码，堆栈溢出不会这样做，grrrrr！

Answer 1

问题解决了！做了一些更改，然后cd android/ && ./gradlew clean 修复它！