在Visual Studio 2012中通過Nuget安裝Signr時失敗：指定的參數超出有效值范圍

Question

我正在嘗試使用以下方法安裝SignalR：

    install-package Microsoft.AspNet.SignalR

我使用Visual Studio2012。跟隨該教程： SignalR 2.0和MVC入門5當我嘗試安裝'Signalr'並收到一條錯誤消息，指出Specified argument was out of the range of valid values. Parameter name: supportedFrameworks Specified argument was out of the range of valid values. Parameter name: supportedFrameworks 。 有人知道為什么會這樣嗎？ 以下是完整的輸出：

Attempting to resolve dependency 'Microsoft.AspNet.SignalR.JS (≥ 2.0.2)'.
Attempting to resolve dependency 'jQuery (≥ 1.6.4)'.
Attempting to resolve dependency 'Microsoft.AspNet.SignalR.SystemWeb (≥ 2.0.2)'.
Attempting to resolve dependency 'Microsoft.AspNet.SignalR.Core (≥ 2.0.2)'.
Attempting to resolve dependency 'Newtonsoft.Json (≥ 5.0.0)'.
Attempting to resolve dependency 'Owin (≥ 1.0)'.
Attempting to resolve dependency 'Microsoft.Owin (≥ 2.0.0)'.
Attempting to resolve dependency 'Microsoft.Owin.Security (≥ 2.0.0)'.
Attempting to resolve dependency 'Microsoft.Owin.Host.SystemWeb (≥ 2.0.0)'.
Installing 'Newtonsoft.Json 5.0.1'.
Successfully installed 'Newtonsoft.Json 5.0.1'.
Installing 'Owin 1.0'.
Successfully installed 'Owin 1.0'.
Installing 'Microsoft.Owin 2.0.0'.
You are downloading Microsoft.Owin from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_enu.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.Owin 2.0.0'.
Installing 'Microsoft.Owin.Security 2.0.0'.
You are downloading Microsoft.Owin.Security from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_enu.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.Owin.Security 2.0.0'.
Installing 'Microsoft.AspNet.SignalR.Core 2.0.2'.
You are downloading Microsoft.AspNet.SignalR.Core from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_ENU.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.AspNet.SignalR.Core 2.0.2'.
Installing 'Microsoft.Owin.Host.SystemWeb 2.0.0'.
You are downloading Microsoft.Owin.Host.SystemWeb from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_enu.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.Owin.Host.SystemWeb 2.0.0'.
Installing 'Microsoft.AspNet.SignalR.SystemWeb 2.0.2'.
You are downloading Microsoft.AspNet.SignalR.SystemWeb from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_ENU.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.AspNet.SignalR.SystemWeb 2.0.2'.
Installing 'Microsoft.AspNet.SignalR 2.0.2'.
You are downloading Microsoft.AspNet.SignalR from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_ENU.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'Microsoft.AspNet.SignalR 2.0.2'.
Adding 'jQuery 1.6.4' to SignalRChat2.
Successfully added 'jQuery 1.6.4' to SignalRChat2.
Adding 'Microsoft.AspNet.SignalR.JS 2.0.2' to SignalRChat2.
Successfully added 'Microsoft.AspNet.SignalR.JS 2.0.2' to SignalRChat2.
Removing 'Newtonsoft.Json 4.5.11' from SignalRChat2.
Install failed. Rolling back...
install-package : Specified argument was out of the range of valid values.
Parameter name: supportedFrameworks
At line:1 char:1
+ install-package Microsoft.AspNet.SignalR
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Install-Package], ArgumentOutOfRangeException
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

我嘗試將框架4、4.5、4.5.1更改為MVC 4、5。所有問題都相同

Answer 1

您可以嘗試從工具->擴展和更新中安裝最新的NuGet，以查看是否仍然可以復制嗎？