Ok. Really quick question, I\'m probably just being thick.
If you right-click on a projects \'references\' folder then \'Manage NuGet Packages\' you can then instal
I had the same issue. The solution posted by kristianp has worked as expected, it can be a bit cumbersome however, when dealing with lots of packages. The solution, that worked for me was just to edit the myProjectName.csproj file in the notepad, and just to copy-paste references from another project like so:
...
..\packages\Microsoft.AspNet.SignalR.Core.2.1.2\lib\net45\Microsoft.AspNet.SignalR.Core.dll
..\packages\Microsoft.AspNet.SignalR.SystemWeb.2.1.2\lib\net45\Microsoft.AspNet.SignalR.SystemWeb.dll
...
Hope this helps someone. It saved me a lot of clicking :)