android - 为我的项目获取gradle错误多个dex文件定义了Lcom/google/android/gms/common/api/zze

Question

我在我的项目中遇到错误，当我尝试构建项目时，多个dex文件定义了Lcom / google / android / gms / common / api / zzeonly。以下是我的gradle文件。

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"

    defaultConfig {
        applicationId "my app id"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

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

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-messaging:10.0.1'
    compile 'com.android.support:recyclerview-v7:25.3.1'
    compile 'com.jakewharton:butterknife:8.6.0'
    compile 'com.google.code.gson:gson:2.8.0'
    compile 'com.android.volley:volley:1.0.0'
    compile 'io.nlopez.smartlocation:library:3.2.9'
    compile 'com.android.support:design:25.3.1'
    testCompile 'junit:junit:4.12'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.6.0'
}

apply plugin: 'com.google.gms.google-services'

Answer 1

注意:如果为minSdkVersion 20或更低版本的Multidex配置了项目，并且将其部署到运行Android 4.4(API级别20)或更低版本的目标设备，则Android Studio会禁用即时运行。

因此，启用multidex如下:

android {    
defaultConfig {
    // Enabling multidex support.
    multiDexEnabled true
}  
}
dependencies {
compile 'com.android.support:multidex:1.0.0'
}

创建一个这样的类

public class Multi_Dex extends Application {
@Override
protected void attachBaseContext(Context base) {
    super.attachBaseContext(base);
    MultiDex.install(this);
}
}

现在在您的 list 文件中添加此

<application
    android:name=".Multi_Dex"
    android:allowBackup="true"
    android:icon="@drawable/logo"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

解决此问题，如此链接中所述:developer.android.com/studio/build/multidex