在Visual Studio 2012中通过Nuget安装Signr时失败：指定的参数超出有效值范围

Question

我正在尝试使用以下方法安装SignalR：

    install-package Microsoft.AspNet.SignalR

我使用Visual Studio2012。跟随该教程： SignalR 2.0和MVC入门5当我尝试安装'Signalr'并收到一条错误消息，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 。 有人知道为什么会这样吗？ 以下是完整的输出：

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

我尝试将框架4、4.5、4.5.1更改为MVC 4、5。所有问题都相同

Answer 1

您可以尝试从工具->扩展和更新中安装最新的NuGet，以查看是否仍然可以复制吗？