I'm trying to install SignalR through NuGet. When it comes to install Json it says that the installation is failed because of a PowerShell policy. 
I've found [this post](https://stackoverflow.com/questions/23353951/cant-install-nuget-package-because-of-failed-to-initialize-the-powershell-host) to explain what to do in such case.

Unfortunately changing the setting is blocked by our company policy and I'm not able to change that value.

What I did as next step is to manually download Json.NET and reference in my project manually. I was hoping that NuGet will find the reference and ignore the installation. But that didn't work as well.

Finally coming to my question: Is there a way to "tell" NuGet to ignore the Json.NET Dependency while installing SignalR ?