error in installing Package Microsoft.AspNet.SignalR

1
votes

I am trying to install Microsoft.AspNet.SignalR from NuGet and get the following error:

'Microsoft.Owin.Security 2.0.2'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.0', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, conta ct the package author.

Has anyone encountered this, and knows what the solution is?

2
asp.netc#-4.0nuget

2 Answers

5
votes

SignalR 2.0 does not support .net 4.0. Either do a upgrade of .net or use a 1.x version of SignalR.

>Install-Package Microsoft.AspNet.SignalR -Version 1.1.3

source

0
votes

Another option is upgrading from Framework 4.0 to Framework 4.5.

Go to the "WEBSITE > Start Options" in the Visual Studio menu, and then change your "Target Framework" to 4.5.

Also make sure that controlRenderingCompatibilityVersion (if used) is also 4.5 in your web.config.

  <system.web>
    <compilation debug="true" targetFramework="4.5" />
    <pages controlRenderingCompatibilityVersion="4.5" />
  </system.web>