パッケージがXamarinフォームアプリケーションと一緒にインストールされない

Question

Xamarinフォームがインストールされています。アプリケーションを実行しようとしているときに、これらの不足しているDLLが表示されています。

Severity Code Description Project File Line Suppression State 
Error  Please install package: 'Xamarin.Android.Support.Vector.Drawable' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.Vector.Drawable\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.CardView' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.CardView\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.Animated.Vector.Drawable' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.Animated.Vector.Drawable\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.RecyclerView' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.RecyclerView\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.MediaRouter' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.MediaRouter\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.RecyclerView' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.RecyclerView\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.Vector.Drawable' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.Vector.Drawable\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.Design' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.Design\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.CardView' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.CardView\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.Design' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.Design\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.AppCompat' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.AppCompat\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.MediaRouter' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.MediaRouter\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v4' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v4\23.3.0.0\content\libs/internal_impl-23.3.0.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v4' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v4\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v4' available in SDK installer. Android resource directory C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v4\23.3.0.0\content\./ doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.MediaRouter' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.MediaRouter\23.3.0.0\content\libs/internal_impl-23.3.0.jar doesn't exist. App1.Droid   
Error  Please install package: 'Xamarin.Android.Support.v7.AppCompat' available in SDK installer. Java library file C:\Users\gurpreet\AppData\Local\Xamarin\Xamarin.Android.Support.v7.AppCompat\23.3.0.0\content\classes.jar doesn't exist. App1.Droid   
Error  Unable to resolve dependencies. 'Xamarin.Android.Support.v7.AppCompat 24.2.1' is not compatible with 'Xamarin.Android.Support.Design 24.2.1 constraint: Xamarin.Android.Support.v7.AppCompat (= 24.2.1)', 'Xamarin.Android.Support.v7.MediaRouter 24.2.1 constraint: Xamarin.Android.Support.v7.AppCompat (= 24.2.1)', 'Xamarin.Forms 2.3.3.175 constraint: Xamarin.Android.Support.v7.AppCompat (= 23.3.0)'.   0 

Answer 1

個々のプラットフォーム用にNugetパッケージをインストールすることができます。

もしそうでない場合は、Visual Studioを閉じてもう一度開いて、問題を解決してください。引き続き同じ問題が発生したら、 "Xamarin.Android.Support.v7.AppCompat" & "Xamarin.Forms" Nuget Packagesを更新してみてください。

ソリューション全体で「パッケージをインストールする」ことを忘れないでください。