Does SignalR support .NET 4.0. Or is it support only from .NET 4.5 upwards. Is there any link which provides with minimum requirements for SignalR.
The last .NET 4.0 support for SignalR is version 1.2.2. Version 2 only works with .NET 4.5
Open the NuGet Package Manager Console and type:
Install-Package Microsoft.AspNet.SignalR.Client -Version 1.2.2
Install-Package Microsoft.AspNet.SignalR -Version 1.2.2
This will install the SignalR (Client and Server) in your selected project (web project) automatically.