Xamarin AdMob Android C# app crash

Question

J'ai fatigué d'intégrer admob dans mon application Xamarin. Mais mon application se bloque quand elle est lancée. googleplayservices-annonces-29.0.0.2

image contient le code pour AndroidManifest.xml

Ci-dessous le code de MainActivity.cs

 try 
     { 

      AdView adView = FindViewById<AdView>(Resource.Id.adView); 
      AdRequest adRequest = new AdRequest.Builder().Build(); 
      adView.LoadAd(adRequest); 

     } 
     catch(Exception ex) 
     { 
      string a = ex.ToString(); 
     } 

Main.axml

<?xml version="1.0" encoding="utf-8"?> 
    <android.support.v4.widget.DrawerLayout           
xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="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:id="@+id/drawer_layout" 
android:fitsSystemWindows="true"> 
<ScrollView 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 
    <RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/relativetry"> 
     <android.support.v7.widget.Toolbar 
      android:id="@+id/toolbar" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:minHeight="?attr/actionBarSize" 
      android:background="?attr/colorPrimary" 
      android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" 
      app:popupTheme="@style/ThemeOverlay.AppCompat.Light" /> 
     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_marginTop="60dp" 
      android:layout_height="wrap_content" 
      android:id="@+id/relativetry1" /> 
     <Spinner 
      android:layout_width="300dp" 
      android:layout_height="50dp" 
      android:layout_centerHorizontal="true" 
      android:layout_marginTop="60dp" 
      android:id="@+id/spinner1" 
      android:popupBackground="#1976D2" /> 
     <Spinner 
      android:layout_width="300dp" 
      android:layout_height="50dp" 
      android:layout_centerHorizontal="true" 
      android:layout_marginTop="115dp" 
      android:popupBackground="#1976D2" 
      android:id="@+id/spinner2" /> 

     <com.google.android.gms.ads.AdView 
      android:id="@+id/adView" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      app:adSize="BANNER" 
      app:adUnitId="ca-app-pub-XXXXXXXXXXXXXXXX~XXXXXXXXXXXX" /> 


    </RelativeLayout> 
</ScrollView> 
<android.support.design.widget.NavigationView 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    android:id="@+id/nav_view" 
    app:menu="@menu/navmenu" 
    app:headerLayout="@layout/header" /> 

Mon application plante sur "adView.LoadAd (adRequest);". besoin d'aide

Erreur:

L'application dosn't entrer dans catchblock

10-12 12:04:30.776 D/Mono (2370): DllImport searching in: '__Internal' ('(null)'). 
10-12 12:04:30.776 D/Mono (2370): Searching for 'java_interop_jnienv_new_string'. 
10-12 12:04:30.776 D/Mono (2370): Probing 'java_interop_jnienv_new_string'. 
10-12 12:04:30.776 D/Mono (2370): Found as 'java_interop_jnienv_new_string'. 
10-12 12:04:30.852 D/Mono (2370): DllImport searching in: '__Internal' ('(null)'). 
10-12 12:04:30.852 D/Mono (2370): Searching for 'java_interop_jnienv_call_nonvirtual_object_method_a'. 
10-12 12:04:30.852 D/Mono (2370): Probing 'java_interop_jnienv_call_nonvirtual_object_method_a'. 
10-12 12:04:30.852 D/Mono (2370): Found as 'java_interop_jnienv_call_nonvirtual_object_method_a'. 
10-12 12:04:30.899 D/Mono (2370): DllImport searching in: '__Internal' ('(null)'). 
10-12 12:04:30.899 D/Mono (2370): Searching for 'java_interop_jnienv_call_void_method_a'. 
10-12 12:04:30.899 D/Mono (2370): Probing 'java_interop_jnienv_call_void_method_a'. 
10-12 12:04:30.899 D/Mono (2370): Found as 'java_interop_jnienv_call_void_method_a'. 
10-12 12:04:30.910 D/Mono (2370): DllImport searching in: '__Internal' ('(null)'). 
10-12 12:04:30.910 D/Mono (2370): Searching for 'java_interop_jnienv_call_void_method'. 
10-12 12:04:30.910 D/Mono (2370): Probing 'java_interop_jnienv_call_void_method'. 
10-12 12:04:30.910 D/Mono (2370): Found as 'java_interop_jnienv_call_void_method'. 
10-12 12:04:30.941 D/Mono (2370): DllImport searching in: '__Internal' ('(null)'). 
10-12 12:04:30.941 D/Mono (2370): Searching for 'java_interop_jnienv_new_local_ref'. 
10-12 12:04:30.941 D/Mono (2370): Probing 'java_interop_jnienv_new_local_ref'. 
10-12 12:04:30.941 D/Mono (2370): Found as 'java_interop_jnienv_new_local_ref'. 
10-12 12:04:39.140 W/GooglePlayServicesUtil(2370): Google Play services is missing. 
10-12 12:04:39.227 W/System (2370): ClassLoader referenced unknown path: /system/app/webview/lib/x86_64 
10-12 12:04:39.232 I/WebViewFactory(2370): Loading com.android.webview version 52.0.2743.100 (code 275610060) 
10-12 12:04:39.305 I/cr_LibraryLoader(2370): Time to load native libraries: 18 ms (timestamps 437-455) 
10-12 12:04:39.305 I/cr_LibraryLoader(2370): Expected native library version number "52.0.2743.100", actual native library version number "52.0.2743.100" 
10-12 12:04:39.373 V/WebViewChromiumFactoryProvider(2370): Binding Chromium to main looper Looper (main, tid 1) {43f9eef} 
10-12 12:04:39.373 I/cr_LibraryLoader(2370): Expected native library version number "52.0.2743.100", actual native library version number "52.0.2743.100" 
[INFO:library_loader_hooks.cc(143)] Chromium logging enabled: level = 0, default verbosity = 0 
10-12 12:04:39.407 I/chromium(2370): [INFO:library_loader_hooks.cc(143)] Chromium logging enabled: level = 0, default verbosity = 0 
10-12 12:04:39.445 I/cr_BrowserStartup(2370): Initializing chromium process, singleProcess=true 
[FATAL:gpu_info_collector_android.cc(193)] failed to create a pbuffer surface for fetching driver strings. EGL_SUCCESS (3000) 
10-12 12:04:39.599 F/chromium(2370): [FATAL:gpu_info_collector_android.cc(193)] failed to create a pbuffer surface for fetching driver strings. EGL_SUCCESS (3000) 
10-12 12:04:39.720 W/google-breakpad(2370): ### ### ### ### ### ### ### ### ### ### ### ### ### 
10-12 12:04:39.720 W/google-breakpad(2370): Chrome build fingerprint: 
10-12 12:04:39.720 W/google-breakpad(2370): 1.0 
10-12 12:04:39.720 W/google-breakpad(2370): 1 
10-12 12:04:39.720 W/google-breakpad(2370): ### ### ### ### ### ### ### ### ### ### ### ### ### 
10-12 12:04:39.720 F/libc (2370): Fatal signal 6 (SIGABRT), code -6 in tid 2370 (VUPa.VUPa) 

Emulator Error

Answer 1

W/GooglePlayServicesUtil(2370): Google Play services is missing.

Vous devez soit utiliser un dispositif physique qui a le Play Store et son services connexes installés, ou un émulateur qui a ceux installés.

Google fournit désormais des images d'émulateur contenant les API Play, au moins pour les dernières versions d'Android. Dans les options de votre plate-forme SDK Android, vous pouvez installer des images d'émulateur marquées "Google Lecture .....".

Ces émulateurs installer la suite complète de Google Play, applications et services par rapport à ceux nommés "Google API ...." qui ne contiennent que une version ASOP de l'OS Android.