“无法获取提供商com.google.firebase.provider.FirebaseInitProvider”错误pathAndroid

我有一个连接到firebase的应用程序。问题是当在设备上安装应用程序(在几个设备上工作)。我读了很多论坛,没有人工作。我在这里读了 这个等等。谢谢!

错误在这里。

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.dev.ptruck, PID: 8833 java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.dev.ptruck-17.apk"],nativeLibraryDirectories=[/data/app-lib/com.dev.ptruck-17, /vendor/lib, /system/lib]] at android.app.ActivityThread.installProvider(ActivityThread.java:5196) at android.app.ActivityThread.installContentProviders(ActivityThread.java:4788) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4728) at android.app.ActivityThread.access$1500(ActivityThread.java:166) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1343) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5584) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.dev.ptruck-17.apk"],nativeLibraryDirectories=[/data/app-lib/com.dev.ptruck-17, /vendor/lib, /system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:497) at java.lang.ClassLoader.loadClass(ClassLoader.java:457) at android.app.ActivityThread.installProvider(ActivityThread.java:5181) at android.app.ActivityThread.installContentProviders(ActivityThread.java:4788) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4728) at android.app.ActivityThread.access$1500(ActivityThread.java:166) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1343) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5584) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084) at dalvik.system.NativeStart.main(Native Method) 

这是开始阶段

 public class StartActivity extends Activity { private static final String FIREBASE_URL = "https://database.firebaseio.com/"; private Firebase myFirebaseRef = null; View rootView; String uid; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_start); Firebase.setAndroidContext(this); final ProgressBar p = (ProgressBar) findViewById(R.id.start_progress_bar); } private void checkUserLogin() { myFirebaseRef.addAuthStateListener(new Firebase.AuthStateListener() { @Override public void onAuthStateChanged(AuthData authData) { if (authData != null) { System.out.println(myFirebaseRef.getKey()); Intent toMainActivity = new Intent(getApplicationContext(), MenuActivity.class); uid = myFirebaseRef.getAuth().getUid(); toMainActivity.putExtra("user_id", uid); finish(); startActivity(toMainActivity); } else if (authData == null) { Intent toMainActivity = new Intent(getApplicationContext(), LoginActivity.class); startActivity(toMainActivity); // user is not logged in } } }); } private Runnable task = new Runnable() { public void run() { checkUserLogin(); } }; @Override protected void onStart() { super.onStart(); if(myFirebaseRef == null) { myFirebaseRef = new Firebase(FIREBASE_URL); } Handler handler = new Handler(); handler.postDelayed(task, 3000); } @Override protected void onDestroy() { super.onDestroy(); unbindDrawables(rootView); rootView = null; System.gc(); } protected void unbindDrawables(View view) { if (view != null) { if (view.getBackground() != null) { view.getBackground().setCallback(null); } if (view instanceof ViewGroup && !(view instanceof AdapterView)) { for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) { unbindDrawables(((ViewGroup) view).getChildAt(i)); } ((ViewGroup) view).removeAllViews(); } } } 

}

Solutions Collecting From Web of "“无法获取提供商com.google.firebase.provider.FirebaseInitProvider”错误pathAndroid"

由于Multidex错误,在API 19(<4.4.2)设备下运行应用程序时,我也遇到了与Firebase相同的问题。 然后下面的解决scheme为我工作:

在应用程序模块build.gradle

 android { ... defaultConfig { multiDexEnabled true ... } } dependencies { // add dependency compile 'com.android.support:multidex:1.0.1' } // ADD THIS AT THE BOTTOM apply plugin: 'com.google.gms.google-services' 

在AndroidManifest.xml中更新名称

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

创build一个MyApplication.java文件

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

在AndroidStudio中尝试这样做:

  1. CTRL + ALT + S
  2. 点击“构build,执行,部署”
  3. 禁用“即时运行”

这应该工作

我有同样的问题,我所做的是从设备/模拟器卸载应用程序,然后,重新安装一次(从Android Studio,“运行”button)。

只要在项目AndroidManifest.xml文件中插入下面的行,如果它们不在应用程序标签中

 <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> 

如果您最近更改了Gradle中的Firebase依赖版本,则可能需要在Android SDKpipe理器中更新到最新版本的Google Repository。

如果您当时无法更新Google Repository,请尝试将Gradle依赖关系版本更改为更低。