私の活動にadmob広告を追加しようとしていますが、私のonCreateメソッド（）にエラーがあります。

Question

私の活動にadmob広告を追加しようとしていますが、私はボタンをクリックして以下のアクティビティを入力します。私はここでerrorrがスローされたコードとLogcatログを投稿します。すべての必要な権限は、マニフェストファイルで提供されます。

build.gradle：

dependencies { 
    compile project(':playservicesads921') 
    compile 'com.android.support:support-v4:23.4.0' 
    compile 'com.android.support:appcompat-v7:23.1.1' 
    compile 'com.android.support:design:23.1.1' 
    compile 'com.google.android.gms:play-services-ads:8.4.0' 

} 

MainActivity：

import com.google.android.gms.ads.AdListener; 
    import com.google.android.gms.ads.AdRequest; 
    import com.google.android.gms.ads.AdView; 

    public class Temperature extends Activity implements OnClickListener{ 

    private AdView mAdView; 
    @SuppressWarnings("deprecation") 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.temperature); 
     Title=(TextView) findViewById(R.id.title); 
     Result=(TextView) findViewById(R.id.result); 
     Value=(EditText) findViewById(R.id.value); 
     spinnerfrom=(Spinner) findViewById(R.id.spinnerfrom); 
     spinnerto=(Spinner) findViewById(R.id.spinnerto); 
     Calculate=(Button) findViewById(R.id.calculate); 
     Bundle b=getIntent().getExtras(); 
     //Title.setText(b.getString("item")); 
     imm=(InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 

     mAdView = (AdView) findViewById(R.id.adView); 

     AdRequest adRequest = new AdRequest.Builder() 
       .addTestDevice(AdRequest.DEVICE_ID_EMULATOR) 
       .addTestDevice("F2B5F7BB75F462E9074A7905A1047616") 
       .build(); 
     mAdView.loadAd(adRequest); 
     mAdView.setAdListener(new AdListener() { 
      @Override 
      public void onAdLoaded() { 
      } 

      @Override 
      public void onAdClosed() { 
       Toast.makeText(getApplicationContext(), "Ad is closed!", Toast.LENGTH_SHORT).show(); 
      } 

      @Override 
      public void onAdFailedToLoad(int errorCode) { 
       Toast.makeText(getApplicationContext(), "Ad failed to load! error code: " + errorCode, Toast.LENGTH_SHORT).show(); 
      } 

      @Override 
      public void onAdLeftApplication() { 
       Toast.makeText(getApplicationContext(), "Ad left application!", Toast.LENGTH_SHORT).show(); 
      } 

      @Override 
      public void onAdOpened() { 
       super.onAdOpened(); 
      } 
Display d=getWindowManager().getDefaultDisplay(); 
     int h=d.getHeight(); 
     int w=d.getWidth(); 
     if(h < 1280 && w < 720) 
     { 
      Title.setTextSize(15); 
      Calculate.setTextSize(15); 
     } 

     TemperatureItems=getResources().getStringArray(R.array.temperatureitems); 
     ArrayAdapter<String> Temperatureadapter=new ArrayAdapter<String>(getBaseContext(), android.R.layout.simple_spinner_dropdown_item, TemperatureItems); 
     spinnerfrom.setAdapter(Temperatureadapter); 
     spinnerto.setAdapter(Temperatureadapter); 

     Calculate.setOnClickListener(this); 

//Futher main logic for the code inside onCreate which works perfectly when ads arent added. 
     }); 


    @Override 
    public void onPause() { 
     if (mAdView != null) { 
      mAdView.pause(); 
     } 
     super.onPause(); 
    } 

    @Override 
    public void onResume() { 
     super.onResume(); 
     if (mAdView != null) { 
      mAdView.resume(); 
     } 
    } 

    @Override 
    public void onDestroy() { 
     if (mAdView != null) { 
      mAdView.destroy(); 
     } 
     super.onDestroy(); 
    } 
    } 

activity_main.xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:ads="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    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=".Temperature" > 

    <TextView 
     android:id="@+id/title" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     android:textSize="20sp" 
     android:textStyle="bold" 
     /> 

    <TextView 
     android:id="@+id/from" 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:text="From" 
     android:textSize="16sp" 
     android:textStyle="bold" 
     android:layout_below="@id/title" 
     android:layout_alignParentLeft="true" 
     android:layout_marginTop="10sp"/> 

    <com.google.android.gms.ads.AdView 
     android:id="@+id/adView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     android:layout_alignParentBottom="true" 
     ads:adSize="BANNER" 
     ads:adUnitId="@string/banner_home_footer"> 
    </com.google.android.gms.ads.AdView> 
</RelativeLayout> 

マニフェストファイル：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="tech.pocket.converter" 
    android:versionCode="3" 
    android:versionName="1.2" > 

    <uses-sdk 
     android:minSdkVersion="14" 
     android:targetSdkVersion="23" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <meta-data 
     android:name="com.google.android.gms.version" 
     android:value="@integer/google_play_services_version" /> 
    <application 
     android:allowBackup="true" 
     android:icon="@drawable/convert" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <!--Include the AdActivity configChanges and theme. --> 
     <activity 
      android:name="com.google.android.gms.ads.AdActivity" 
      android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" 
      android:theme="@android:style/Theme.Translucent" /> 
     <activity 
      android:name="tech.pocket.converter.SplashScreen" 
      android:label="@string/app_name" 
      android:screenOrientation="portrait"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 

     <activity 
      android:name="tech.pocket.converter.Temperature" 
      android:label="@string/title_activity_temperature" 
      android:screenOrientation="portrait" > 
     </activity> 

    </application> 

</manifest> 

Logcatレポート：遊ぶ - サービス - 広告：

E/AndroidRuntime: FATAL EXCEPTION: main 
        Process: tech.pocket.converter, PID: 13341 
        java.lang.NoSuchMethodError: No static method retainReference()V in class Lcom/google/android/gms/ads/internal/ClientApi; or its super classes (declaration of 'com.google.android.gms.ads.internal.ClientApi' appears in /data/data/tech.pocket.converter/files/instant-run/dex/slice-playservicesads921-unspecified-jars_a79d5d19414b37778fbbf51e978b6dbb12d40ba5-classes.dex) 
         at com.google.android.gms.ads.internal.client.zzl.<init>(Unknown Source) 
         at com.google.android.gms.ads.internal.client.zzn.<init>(Unknown Source) 
         at com.google.android.gms.ads.internal.client.zzn.<clinit>(Unknown Source) 
         at com.google.android.gms.ads.internal.client.zzn.zzcS(Unknown Source) 
         at com.google.android.gms.ads.internal.client.zzaa.<clinit>(Unknown Source) 
         at com.google.android.gms.ads.AdRequest.<clinit>(Unknown Source) 
         at com.google.android.gms.ads.AdRequest$Builder.<init>(Unknown Source) 
         at tech.pocket.converter.Temperature.onCreate(Temperature.java:57) 
         at android.app.Activity.performCreate(Activity.java:6259) 
         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1130) 
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379) 
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
         at android.app.ActivityThread.-wrap11(ActivityThread.java) 
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
         at android.os.Handler.dispatchMessage(Handler.java:102) 
         at android.os.Looper.loop(Looper.java:148) 
         at android.app.ActivityThread.main(ActivityThread.java:5443) 
         at java.lang.reflect.Method.invoke(Native Method) 
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 

Answer 1

が

compile 'com.google.android.gms:play-services-ads:9.6.1'