Question

当我将我的android工作室更新为3.1.2时，我收到了此错误：

java.lang.RuntimeException：无法获取提供者com.google.firebase.provider.FirebaseInitProvider：java.lang.ClassNotFoundException：未在路径上找到“com.google.firebase.provider.FirebaseInitProvider”类：DexPathList < / p>

build.gradle

android {
compileSdkVersion 26
buildToolsVersion '27.0.3'
defaultConfig {
    applicationId "com.example"
    minSdkVersion 19
    targetSdkVersion 26
    versionCode 1
    versionName "1.0.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    useLibrary 'org.apache.http.legacy'
    multiDexEnabled true
    vectorDrawables.useSupportLibrary = true
}
buildTypes {
    release {
        debuggable false
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

    }
    debug {
        debuggable true
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

    }
}
dexOptions {
    javaMaxHeapSize "8g"
}
packagingOptions {
    exclude 'META-INF/DEPENDENCIES.txt'
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/NOTICE.txt'
    exclude 'META-INF/NOTICE'
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/DEPENDENCIES'
    exclude 'META-INF/notice.txt'
    exclude 'META-INF/license.txt'
    exclude 'META-INF/dependencies.txt'
    exclude 'META-INF/LGPL2.1'
}
productFlavors {
}
}
dependencies {
     compile 'com.android.support:multidex:1.0.3'
}

清单

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme"
    android:name="com.example.ApplicationManager">

    <activity android:name=".MainActivity"
        android:windowSoftInputMode="adjustResize"
        android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

com.example.ApplicationManager

public class ApplicationManager extends Application {

@Override
protected void attachBaseContext(Context base) {
    super.attachBaseContext(base);
    MultiDex.install(this);
}
}

Answer 1

试试这段代码。

public class ApplicationManager extends MultiDexApplication{

@Override
protected void attachBaseContext(Context base) {
    super.attachBaseContext(base);
    MultiDex.install(this);
}
}

Answer 2

您在扩展中使用了application类：在扩展应用程序类中使用以下类：

public class ApplicationManager extends MultiDexApplication {

@Override
protected void attachBaseContext(Context base) {
   super.attachBaseContext(base);
   MultiDex.install(this);
  }
}

并将此行放在manifest中的应用程序类中：

android:allowBackup="false"
android:hardwareAccelerated="true"
android:icon="@drawable/app_icon_new"
android:label="@string/app_name"
android:largeHeap="true"
android:theme="@style/AppTheme"

更新Android Studio时出现multiDex错误

2 个答案: