Not sure if my local IIS server is setup correctly for .NET 4.5

[AlIdian]

I'm trying to run a website on IIS 7.5 and I just installed .NET 4.5. I'm using this as a local testing server.When I try and run my site I am getting the following exception:\[code\]Could not load file or assembly 'Newtonsoft.Json (1)' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)\[/code\]Can anyone tell me what is going wrong? I've run the same site that was published from Visual Studio on other hosts and it has worked fine. I suspect that there is something not configured correctly with my IIS to run 4.5, can anyone point me in the right direction here? I have hardly any experience with IIS so am quite lost at the moment and Google isn't bringing much helpful information up.Cheers