Java 构建APK时会弹出一个错误

错误：任务“：app:transformClassesWithDexForDebug”的执行失败

com.android.build.api.transform.TransformException:com.android.ide.common.process.ProcessException:java.util.concurrent.ExecutionException:com.android.dex.DexException:多个dex文件定义Lcom/google/android/gms/auth/api/signin/internal/zzg

当我尝试构建APK时，会显示此错误消息。 这是什么意思？我怎样才能修好它

这些是我的依赖项：

compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.google.android.gms:play-services-maps:10.2.0'
compile 'com.android.support:design:25.3.1'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:support-v4:25.3.1'
compile 'com.android.support:support-vector-drawable:25.3.1'
compile 'com.google.firebase:firebase-auth:10.2.0'
compile 'com.google.firebase:firebase-storage:10.2.0'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.github.sillebille:dynamic-calendar:1.0.1'
compile 'com.mcxiaoke.volley:library:1.0.19'
compile 'com.firebaseui:firebase-ui:0.6.2'
testCompile 'junit:junit:4.12'

---

将'com.firebaseui:firebaseui:0.6.2'更改为'com.firebaseui:firebaseui:1.2.0'，并添加编译'com.android.support:multidex:1.0.1'

应用程序build.gradle

android {
    defaultConfig {
         // whats ever
         multiDexEnabled true
    }
}

// whats ever

dependencies {
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.google.android.gms:play-services-maps:10.2.0'
    compile 'com.android.support:design:25.3.1'
    compile 'com.google.firebase:firebase-database:10.2.0'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:support-vector-drawable:25.3.1'
    compile 'com.google.firebase:firebase-auth:10.2.0'
    compile 'com.google.firebase:firebase-storage:10.2.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.github.sillebille:dynamic-calendar:1.0.1'
    compile 'com.mcxiaoke.volley:library:1.0.19'
    compile 'com.firebaseui:firebase-ui:1.2.0'
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:multidex:1.0.1'
}

allprojects {
    repositories {
    // whats ever
    maven { url 'https://maven.fabric.io/public' }
}

并添加到您的项目build.gradle中

android {
    defaultConfig {
         // whats ever
         multiDexEnabled true
    }
}

// whats ever

dependencies {
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.google.android.gms:play-services-maps:10.2.0'
    compile 'com.android.support:design:25.3.1'
    compile 'com.google.firebase:firebase-database:10.2.0'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:support-vector-drawable:25.3.1'
    compile 'com.google.firebase:firebase-auth:10.2.0'
    compile 'com.google.firebase:firebase-storage:10.2.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.github.sillebille:dynamic-calendar:1.0.1'
    compile 'com.mcxiaoke.volley:library:1.0.19'
    compile 'com.firebaseui:firebase-ui:1.2.0'
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:multidex:1.0.1'
}

allprojects {
    repositories {
    // whats ever
    maven { url 'https://maven.fabric.io/public' }
}

AndroidManifest.xml

<application
    android:name="android.support.multidex.MultiDexApplication"

---

您有很多libs。看这个医生@Ludy Astra Germany我做了，仍然没有工作。你知道这还能是什么吗？