title: Xamarin Forms Android Problems, package android.support.design.* does not exist
body: <p>I have a Xamarin.Forms Project in which i can not get Android to build, as a matter of fact even a brand new project i have the same problems Android fails out with tons and tons of errors. I have installed and reinstalled Android SDK, Java, and made sure all thats in the Android SDK is installed, still no go.</p>
  
  <pre><code>Severity    Code    Description Project File    Line    Suppression State
  Error       error: package android.support.design.widget.TabLayout does not exist
          android.support.design.widget.TabLayout.OnTabSelectedListener,  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   8   
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabReselected (android.support.design.widget.TabLayout.Tab p0)    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   76  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabReselected (android.support.design.widget.TabLayout.Tab p0); MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   81  
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabSelected (android.support.design.widget.TabLayout.Tab p0)  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   84  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabSelected (android.support.design.widget.TabLayout.Tab p0);   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   89  
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabUnselected (android.support.design.widget.TabLayout.Tab p0)    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   92  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabUnselected (android.support.design.widget.TabLayout.Tab p0); MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\md5270abb39e60627f0f200893b490a1ade\TabbedPageRenderer.java   97  
  Error       error: package android.support.design.widget.AppBarLayout does not exist
          android.support.design.widget.AppBarLayout.OnOffsetChangedListener  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\AppBarLayout_OnOffsetChangedListenerImplementor.java   8   
  Error       error: cannot find symbol
      public void onOffsetChanged (android.support.design.widget.AppBarLayout p0, int p1)
    symbol:   class AppBarLayout
    location: package android.support.design.widget   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\AppBarLayout_OnOffsetChangedListenerImplementor.java   27  
  Error       error: cannot find symbol
      private native void n_onOffsetChanged (android.support.design.widget.AppBarLayout p0, int p1);
    symbol:   class AppBarLayout
    location: package android.support.design.widget   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\AppBarLayout_OnOffsetChangedListenerImplementor.java   32  
  Error       error: package android.support.design.widget.NavigationView does not exist
          android.support.design.widget.NavigationView.OnNavigationItemSelectedListener   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\NavigationView_OnNavigationItemSelectedListenerImplementor.java    8   
  Error       error: package android.support.design.widget.SwipeDismissBehavior does not exist
          android.support.design.widget.SwipeDismissBehavior.OnDismissListener    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\SwipeDismissBehavior_OnDismissListenerImplementor.java 8   
  Error       error: package android.support.design.widget.TabLayout does not exist
          android.support.design.widget.TabLayout.OnTabSelectedListener   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    8   
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabReselected (android.support.design.widget.TabLayout.Tab p0)    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    29  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabReselected (android.support.design.widget.TabLayout.Tab p0); MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    34  
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabSelected (android.support.design.widget.TabLayout.Tab p0)  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    37  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabSelected (android.support.design.widget.TabLayout.Tab p0);   MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    42  
  Error       error: package android.support.design.widget.TabLayout does not exist
      public void onTabUnselected (android.support.design.widget.TabLayout.Tab p0)    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    45  
  Error       error: package android.support.design.widget.TabLayout does not exist
      private native void n_onTabUnselected (android.support.design.widget.TabLayout.Tab p0); MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp.Droid\obj\Debug\android\src\mono\android\support\design\widget\TabLayout_OnTabSelectedListenerImplementor.java    50  
  Warning CS0108  'App.Current' hides inherited member 'Application.Current'. Use the new keyword if hiding was intended. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\App.cs    9   
  Warning CS0108  'LoginPage.IsBusy' hides inherited member 'Page.IsBusy'. Use the new keyword if hiding was intended.    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\LoginPage.xaml.cs 53  
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\LoginPage.xaml.cs 105 
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\LoginPage.xaml.cs 112 
  Warning CS0649  Field 'LoginServerResponseModel.Login' is never assigned to, and will always have its default value null    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Models\LoginServerResponseModel.cs    8   
  Warning CS0649  Field 'RegistrationServerResponseModel.registration' is never assigned to, and will always have its default value null  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Models\RegistrationServerResponseModel.cs 8   
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\SignupPage.xaml.cs    99  
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\SignupPage.xaml.cs    150 
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\SignupPage.xaml.cs    157 
  Warning CS0414  The field 'UploadImagePage.imgcount' is assigned but its value is never used    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\UploadImagePage.xaml.cs   10  
  Warning CS0414  The field 'UploadImagePage.userfolder' is assigned but its value is never used  MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\UploadImagePage.xaml.cs   11  
  Warning CS4014  Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\UploadImagePage.xaml.cs   56  
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\background.png     
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\check_active.png       
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\check_inactive.png     
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\icon_easyrest.png      
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\ic_launcher.png        
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\logout.png     
  Warning     @(Content) build action is not supported    MyApp.Droid P:\VisualStudioProjects\MyApp\MyApp\MyApp\Images\pdf_icon.png   
  </code></pre>