I am trying to understand the Google Maps API with a little app following the tutorial from Xamarin. However, the compiler won't let me build the app with the following errors :
` 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnSignOutCompleteListenerImplementor.java(8,34): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnSignOutCompleteListenerImplementor.java(8,34): javac error : symbol : class OnSignOutCompleteListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnSignOutCompleteListenerImplementor.java(8,34): javac error : location: package com.google.android.gms.appstate 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnSignOutCompleteListenerImplementor.java(8,34): javac error : com.google.android.gms.appstate.OnSignOutCompleteListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnSignOutCompleteListenerImplementor.java(8,34): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateDeletedListenerImplementor.java(8,34): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateDeletedListenerImplementor.java(8,34): javac error : symbol : class OnStateDeletedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateDeletedListenerImplementor.java(8,34): javac error : location: package com.google.android.gms.appstate 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateDeletedListenerImplementor.java(8,34): javac error : com.google.android.gms.appstate.OnStateDeletedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateDeletedListenerImplementor.java(8,34): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateListLoadedListenerImplementor.java(8,34): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateListLoadedListenerImplementor.java(8,34): javac error : symbol : class OnStateListLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateListLoadedListenerImplementor.java(8,34): javac error : location: package com.google.android.gms.appstate 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateListLoadedListenerImplementor.java(8,34): javac error : com.google.android.gms.appstate.OnStateListLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateListLoadedListenerImplementor.java(8,34): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateLoadedListenerImplementor.java(8,34): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateLoadedListenerImplementor.java(8,34): javac error : symbol : class OnStateLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateLoadedListenerImplementor.java(8,34): javac error : location: package com.google.android.gms.appstate 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateLoadedListenerImplementor.java(8,34): javac error : com.google.android.gms.appstate.OnStateLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\appstate\OnStateLoadedListenerImplementor.java(8,34): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnGamesLoadedListenerImplementor.java(8,31): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnGamesLoadedListenerImplementor.java(8,31): javac error : symbol : class OnGamesLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnGamesLoadedListenerImplementor.java(8,31): javac error : location: package com.google.android.gms.games 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnGamesLoadedListenerImplementor.java(8,31): javac error : com.google.android.gms.games.OnGamesLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnGamesLoadedListenerImplementor.java(8,31): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnPlayersLoadedListenerImplementor.java(8,31): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnPlayersLoadedListenerImplementor.java(8,31): javac error : symbol : class OnPlayersLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnPlayersLoadedListenerImplementor.java(8,31): javac error : location: package com.google.android.gms.games 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnPlayersLoadedListenerImplementor.java(8,31): javac error : com.google.android.gms.games.OnPlayersLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnPlayersLoadedListenerImplementor.java(8,31): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnSignOutCompleteListenerImplementor.java(8,31): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnSignOutCompleteListenerImplementor.java(8,31): javac error : symbol : class OnSignOutCompleteListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnSignOutCompleteListenerImplementor.java(8,31): javac error : location: package com.google.android.gms.games 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnSignOutCompleteListenerImplementor.java(8,31): javac error : com.google.android.gms.games.OnSignOutCompleteListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\OnSignOutCompleteListenerImplementor.java(8,31): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementsLoadedListenerImplementor.java(8,43): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementsLoadedListenerImplementor.java(8,43): javac error : symbol : class OnAchievementsLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementsLoadedListenerImplementor.java(8,43): javac error : location: package com.google.android.gms.games.achievement 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementsLoadedListenerImplementor.java(8,43): javac error : com.google.android.gms.games.achievement.OnAchievementsLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementsLoadedListenerImplementor.java(8,43): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementUpdatedListenerImplementor.java(8,43): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementUpdatedListenerImplementor.java(8,43): javac error : symbol : class OnAchievementUpdatedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementUpdatedListenerImplementor.java(8,43): javac error : location: package com.google.android.gms.games.achievement 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementUpdatedListenerImplementor.java(8,43): javac error : com.google.android.gms.games.achievement.OnAchievementUpdatedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\achievement\OnAchievementUpdatedListenerImplementor.java(8,43): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(8,43): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(8,43): javac error : symbol : class OnScoreSubmittedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(8,43): javac error : location: package com.google.android.gms.games.leaderboard 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(8,43): javac error : com.google.android.gms.games.leaderboard.OnScoreSubmittedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(8,43): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(27,80): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(27,80): javac error : symbol : class SubmitScoreResult 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(27,80): javac error : location: package com.google.android.gms.games.leaderboard 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(27,80): javac error : public void onScoreSubmitted (int p0, com.google.android.gms.games.leaderboard.SubmitScoreResult p1) 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(27,80): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(32,90): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(32,90): javac error : symbol : class SubmitScoreResult 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(32,90): javac error : location: package com.google.android.gms.games.leaderboard 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(32,90): javac error : private native void n_onScoreSubmitted (int p0, com.google.android.gms.games.leaderboard.SubmitScoreResult p1); 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\leaderboard\OnScoreSubmittedListenerImplementor.java(32,90): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RealTimeReliableMessageSentListenerImplementor.java(8,52): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RealTimeReliableMessageSentListenerImplementor.java(8,52): javac error : symbol : class RealTimeReliableMessageSentListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RealTimeReliableMessageSentListenerImplementor.java(8,52): javac error : location: package com.google.android.gms.games.multiplayer.realtime 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RealTimeReliableMessageSentListenerImplementor.java(8,52): javac error : com.google.android.gms.games.multiplayer.realtime.RealTimeReliableMessageSentListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RealTimeReliableMessageSentListenerImplementor.java(8,52): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\plus\PlusClient_OnPersonLoadedListenerImplementor.java(8,41): javac error : cannot find symbol 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\plus\PlusClient_OnPersonLoadedListenerImplementor.java(8,41): javac error : symbol : class OnPersonLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\plus\PlusClient_OnPersonLoadedListenerImplementor.java(8,41): javac error : location: class com.google.android.gms.plus.PlusClient 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\plus\PlusClient_OnPersonLoadedListenerImplementor.java(8,41): javac error : com.google.android.gms.plus.PlusClient.OnPersonLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\plus\PlusClient_OnPersonLoadedListenerImplementor.java(8,41): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\common\images\ImageManager_OnImageLoadedListenerImplementor.java(4,8): javac error : mono.com.google.android.gms.common.images.ImageManager_OnImageLoadedListenerImplementor is not abstract and does not override abstract method onImageLoaded(android.net.Uri,android.graphics.drawable.Drawable,boolean) in com.google.android.gms.common.images.ImageManager.OnImageLoadedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\common\images\ImageManager_OnImageLoadedListenerImplementor.java(4,8): javac error : public class ImageManager_OnImageLoadedListenerImplementor 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\common\images\ImageManager_OnImageLoadedListenerImplementor.java(4,8): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\OnInvitationReceivedListenerImplementor.java(4,8): javac error : mono.com.google.android.gms.games.multiplayer.OnInvitationReceivedListenerImplementor is not abstract and does not override abstract method onInvitationRemoved(java.lang.String) in com.google.android.gms.games.multiplayer.OnInvitationReceivedListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\OnInvitationReceivedListenerImplementor.java(4,8): javac error : public class OnInvitationReceivedListenerImplementor 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\OnInvitationReceivedListenerImplementor.java(4,8): javac error : 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RoomStatusUpdateListenerImplementor.java(4,8): error : mono.com.google.android.gms.games.multiplayer.realtime.RoomStatusUpdateListenerImplementor is not abstract and does not override abstract method onP2PDisconnected(java.lang.String) in com.google.android.gms.games.multiplayer.realtime.RoomStatusUpdateListener 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RoomStatusUpdateListenerImplementor.java(4,8): error : public class RoomStatusUpdateListenerImplementor 1>C:\Users\cegepnt\Documents\SetupGoogleMaps\SetupGoogleMaps\obj\Debug\android\src\mono\com\google\android\gms\games\multiplayer\realtime\RoomStatusUpdateListenerImplementor.java(4,8): error :
` I am quite new to Xamarin and I am not able to build the sample app with Maps either obtaining the same errors. The Google Play Services extra is installed from the SDK Manaqger with the lastest version.