Xamarin.Android.Support.v17.Leanback will not install

[stesvis]

Xamarin.Android Version (eg: 6.0):

8.2.0.15

Operating System & Version (eg: Mac OSX 10.11):

Windows 10 Home v1709

Support Libraries Version (eg: 23.3.0):

Trying to install v27.0.2

Describe your Issue:

The package fails to install

Steps to Reproduce (with link to sample solution if possible):

install-package Xamarin.Android.Support.v17.Leanback

Include any relevant Exception Stack traces, build logs, adb logs:

PM> install-package Xamarin.Android.Support.v17.Leanback CACHE https://api.nuget.org/v3/registration3-gz-semver2/xamarin.android.support.v17.leanback/index.json GET https://dotnet.myget.org/F/aspnetcore-dev/Packages(Id='Xamarin.Android.Support.v17.Leanback',Version='27.0.2') GET http://nuget.syncfusion.com/nuget_xamarin/nuget/getsyncfusionpackages/xamarin/Packages(Id='Xamarin.Android.Support.v17.Leanback',Version='27.0.2') Error finding repository for 'https://www.myget.org/F/aspnetvnext/': An error occurred while retrieving package metadata for 'Xamarin.Android.Support.v17.Leanback.27.0.2' from source 'AspnetVnext'. Failed to fetch results from V2 feed at 'https://dotnet.myget.org/F/aspnetcore-dev/Packages(Id='Xamarin.Android.Support.v17.Leanback',Version='27.0.2')' with following message : A task was canceled. A task was canceled. Error finding repository for 'http://nuget.syncfusion.com/nuget_xamarin/nuget/getsyncfusionpackages/xamarin': An error occurred while retrieving package metadata for 'Xamarin.Android.Support.v17.Leanback.27.0.2' from source 'Syncfusion_Xamarin'. Failed to fetch results from V2 feed at 'http://nuget.syncfusion.com/nuget_xamarin/nuget/getsyncfusionpackages/xamarin/Packages(Id='Xamarin.Android.Support.v17.Leanback',Version='27.0.2')' with following message : A task was canceled. A task was canceled. Restoring packages for H:\Documents\Visual Studio 2017\Projects\BlankApp1\BlankApp1\BlankApp1.Android\BlankApp1.Android.csproj... install-package : NU1202: Package Xamarin.Android.Support.v17.Leanback 27.0.2 is not compatible with monoandroid80 (MonoAndroid,Version=v8.0). Package Xamarin.Android.Support.v17.Leanback 27.0.2 supports: monoandroid81 (MonoAndroid,Version=v8.1) At line:1 char:1

• install-package Xamarin.Android.Support.v17.Leanback

• 
  + CategoryInfo          : NotSpecified: (:) [Install-Package], Exception
  + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand

install-package : Package restore failed. Rolling back package changes for 'BlankApp1.Android'. At line:1 char:1

• install-package Xamarin.Android.Support.v17.Leanback

• 
  + CategoryInfo          : NotSpecified: (:) [Install-Package], Exception
  + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand

Time Elapsed: 00:00:02.1230742

[Redth]

Your project needs to use <TargetFramework>MonoAndroid81</TargetFramework> to use support libraries v27.x.