Google Playストアがありません（Firebase認証）

私はFirebaseを使用するための初心者です。現在、私はFirebase認証をしようとYouTubeの（https://www.youtube.com/watch?v=oi-UAwiBigQ&index=9&list=PLGCjwl1RrtcTXrWuRTa59RyRmQ4OedWrt）からそれを学んだが、それはここでGoogle Playストアがありません（Firebase認証）

W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found. 
W/GooglePlayServicesUtil: Google Play Store is missing.

私を示して自分のコードのAndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

ですよ

<uses-permission android:name="android.permission.INTERNET" /> 

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

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity android:name=".AccountActivity"></activity> 
</application>

FireApp.java

package com.google.firebasetester; 

import android.app.Application; 

import com.firebase.client.Firebase; 


public class FireApp extends Application { 
    @Override 
    public void onCreate() { 
    super.onCreate(); 

    Firebase.setAndroidContext(this); 
} 
}

MainActivity.java

package com.google.firebasetester; 

import android.accounts.Account; 
import android.content.Intent; 
import android.support.annotation.NonNull; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.text.TextUtils; 
import android.util.Log; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ListView; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.firebase.client.ChildEventListener; 
import com.firebase.client.DataSnapshot; 
import com.firebase.client.Firebase; 
import com.firebase.client.FirebaseError; 
import com.firebase.client.ValueEventListener; 
import com.google.android.gms.tasks.OnCompleteListener; 
import com.google.android.gms.tasks.Task; 
import com.google.firebase.auth.AuthResult; 
import com.google.firebase.auth.FirebaseAuth; 

import java.util.ArrayList; 
import java.util.Map; 

public class MainActivity extends AppCompatActivity { 
private EditText mEmailField; 
private EditText mPasswordField; 

private Button mLoginBtn; 

private FirebaseAuth mAuth; 

private FirebaseAuth.AuthStateListener mAuthListener; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    //FirebaseAuth setup 
    mAuth=FirebaseAuth.getInstance(); 
    mEmailField = (EditText) findViewById(R.id.emailField); 
    mPasswordField = (EditText) findViewById(R.id.passwordField); 

    mLoginBtn = (Button) findViewById(R.id.loginBtn); 
    mAuthListener =new FirebaseAuth.AuthStateListener() { 
     @Override 
     public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) { 
      //if equal to null means user have not login, cannot find any user 
      //if(firebaseAuth.getCurrentUser()==null) 

      //user has login 
      if(firebaseAuth.getCurrentUser()!=null) 
      { 
       startActivity(new Intent(MainActivity.this, AccountActivity.class)); 
      } 
     } 
    }; 

    mLoginBtn.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View view) { 

     //click when user click on login button 
     startSignIn(); 
    } 
    } 
    ); 

} 
@Override 
protected void onStart() 
{ 
    super.onStart(); 
    mAuth.addAuthStateListener(mAuthListener); 
} 
private void startSignIn() 
{ 
    String email=mEmailField.getText().toString(); 
    String password=mPasswordField.getText().toString(); 

    //to make sure user not blank the field 
    if(TextUtils.isEmpty(email)||TextUtils.isEmpty(password)) { 
     Toast.makeText(MainActivity.this, "Fields are empty.", Toast.LENGTH_LONG).show(); 

    } 
    else 
    { 
     mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() { 
      @Override 
      public void onComplete(@NonNull Task<AuthResult> task) { 
       //user not successful login 
       if (!task.isSuccessful()) { 
        Toast.makeText(MainActivity.this, "Sign in Problem", Toast.LENGTH_LONG).show(); 
       } 
      } 
     }); 
    } 
} 
}

AccountActivity.java

package com.google.firebasetester; 

import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 

public class AccountActivity extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_account); 
    } 
}

activity_account.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/activity_account" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.google.firebasetester.AccountActivity"> 
<EditText 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:inputType="textPersonName" 
    android:text="Account" 
    android:ems="10" 
    android:layout_alignParentTop="true" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="184dp" 
    android:id="@+id/editText" /> 
</RelativeLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/activity_main" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.google.firebasetester.MainActivity" 
    android:padding="20dp"> 

<EditText 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:inputType="textPassword" 
    android:ems="10" 
    android:layout_below="@+id/emailField" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" 
    android:layout_marginTop="61dp" 
    android:id="@+id/passwordField" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentEnd="true" 
    android:hint="Password" /> 

<Button 
    android:text="Login" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/passwordField" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" 
    android:layout_marginLeft="110dp" 
    android:layout_marginStart="110dp" 
    android:layout_marginTop="31dp" 
    android:id="@+id/loginBtn" /> 

<EditText 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:inputType="textEmailAddress" 
    android:ems="10" 
    android:id="@+id/emailField" 
    android:layout_alignParentTop="true" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentEnd="true" 
    android:hint="Email" /> 
</RelativeLayout>

build.gradle（プロジェクト：FirebaseTester）

// Top-level build file where you can add configuration options common to all sub-projects/modules. 

buildscript { 
    repositories { 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:2.2.2' 
     classpath 'com.google.gms:google-services:3.0.0' 
     // NOTE: Do not place your application dependencies here; they belong 
     // in the individual module build.gradle files 
    } 
} 

allprojects { 
    repositories { 
     jcenter() 
    } 
} 

task clean(type: Delete) { 
    delete rootProject.buildDir 
}

build.gradle（モジュール：アプリ）

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 24 
    buildToolsVersion "24.0.2" 
    defaultConfig { 
     applicationId "com.google.firebasetester" 
     minSdkVersion 16 
     targetSdkVersion 24 
     versionCode 1 
     versionName "1.0" 
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 
    } 
    packagingOptions { 
     exclude 'META-INF/NOTICE' // will not include NOTICE file 
     exclude 'META-INF/LICENSE' // will not include LICENSE file 
     // as noted by @Vishnuvathsan you may also need to include 
     // variations on the file name. It depends on your dependencies. 
     // Some other common variations on notice and license file names 
     exclude 'META-INF/notice' 
     exclude 'META-INF/notice.txt' 
     exclude 'META-INF/license' 
     exclude 'META-INF/license.txt' 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
} 

dependencies { 

    compile fileTree(dir: 'libs', include: ['*.jar']) 
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 
     exclude group: 'com.android.support', module: 'support-annotations' 
    }) 
    compile 'com.android.support:appcompat-v7:24.2.1' 
    compile 'com.google.firebase:firebase-database:9.8.0' 
    compile 'com.google.firebase:firebase-crash:9.8.0' 
    compile 'com.google.firebase:firebase-auth:9.8.0' 
    compile 'com.firebase:firebase-client-android:2.5.2' 
    compile 'com.google.firebase:firebase-core:9.8.0' 
    testCompile 'junit:junit:4.12' 
} 
apply plugin: 'com.google.gms.google-services'

Android Project

私は問題を解決してください。ありがとうございました！

出典

2016-11-06 Jane