VFP and .NET Interop
OLE IDispatch exception code 0 from Microsoft.AspNet.SignalR.Client
Gravatar is a globally recognized avatar based on your email address. OLE IDispatch exception code 0 from Microsoft.AspNet.SignalR.Client
  Alejandro A Sosa
  All
  Feb 20, 2017 @ 07:54am

Hello,

Trying to implement SignalR communication ran into the following error.

OLE IDispatch exception code 0 from Microsoft.AspNet.SignalR.Client: Method not found: 'Newtonsoft.Json.Linq.JValue Newtonsoft.Json.Linq.JValue.CreateNull()'...

Alex

Gravatar is a globally recognized avatar based on your email address. re: OLE IDispatch exception code 0 from Microsoft.AspNet.SignalR.Client
  Rick Strahl
  Alejandro A Sosa
  Feb 20, 2017 @ 11:18am

Not sure without looking closer.

You might be missing the Newtonsoft.Json assembly in the folder.

+++ Rick ---

Gravatar is a globally recognized avatar based on your email address. re: OLE IDispatch exception code 0 from Microsoft.AspNet.SignalR.Client
  Alejandro A Sosa
  Rick Strahl
  Feb 25, 2017 @ 03:05pm

I am not sure exactly how it was repaired, but it was. Among other things I restarted IIS. That is my leading hunch.

Thanks for the answer,

Alex

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