任务“ app：dexDebug”的执行失败

Question

我最近尝试在我的应用程序上测试本地后端支持，并且遇到了一些gradle构建问题。 以下是我遇到的错误：

Error:Execution failed for task ':app:dexDebug'.

com.android.ide.common.process.ProcessException：org.gradle.process.internal.ExecException：处理'command'/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java''完成非零退出值2

这是我的清单：

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

<permission
    android:name="com.example.gcm.permission.C2D_MESSAGE"
    android:protectionLevel="signature" />

<uses-permission android:name="com.example.gcm.permission.C2D_MESSAGE" />

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".LoginActivity"
        android:label="@string/title_activity_login"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name=".SignUpActivity"
        android:label="@string/title_activity_sign_up"
        android:parentActivityName=".LoginActivity"
        android:screenOrientation="portrait" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="yassin.marc.guardianreader.LoginActivity" />
    </activity>
</application>

这是build.gradle（应用程序）：

apply plugin: 'com.android.application'

android {
compileSdkVersion 22
buildToolsVersion "22.0.1"

defaultConfig {
    //applicationId 
    minSdkVersion 14
    targetSdkVersion 22
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.1'
compile 'com.android.support:recyclerview-v7:22.2.1'
compile 'com.daimajia.swipelayout:library:1.2.0@aar'
compile 'com.daimajia.androidanimations:library:1.1.2@aar'
compile 'com.nineoldandroids:library:2.4.0'
compile 'com.android.support:support-v4:22.2.1'
compile 'de.hdodenhof:circleimageview:1.2.1'
compile 'com.google.android.gms:play-services:7.5.0'
compile project(path: ':backend', configuration: 'android-endpoints')
}

这是build.gradle（后端）：

buildscript {
repositories {
    jcenter()
}
dependencies {
    classpath 'com.google.appengine:gradle-appengine-plugin:1.9.18'
}
repositories {
jcenter();
}
apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'appengine'
sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7
dependencies {
appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.18'
compile 'com.google.appengine:appengine-endpoints:1.9.18'
compile 'com.google.appengine:appengine-endpoints-deps:1.9.18'
compile 'javax.servlet:servlet-api:2.5'
compile 'com.googlecode.objectify:objectify:4.0b3'
compile 'com.ganyo:gcm-server:1.0.2'
}

appengine {
downloadSdk = true
appcfg {
    oauth2 = true
}
endpoints {
    getClientLibsOnBuild = true
    getDiscoveryDocsOnBuild = true
}

我尝试删除多余的依赖关系，但没有成功。 我想知道你们能否给我一些帮助！ 任何帮助深表感谢！

Answer 1

我找到了解决方法。 我加了

multiDexEnabled true

到defaultconfig：

defaultConfig {
    //applicationId
    minSdkVersion 14
    targetSdkVersion 22
    versionCode 1
    versionName "1.0"

    multiDexEnabled true
}