I am using Newtonsoft.Json assembly for Deserializing Json response. Solution builds fine, deploys fine. But when the json response is to be deserialized, I get "Could not load file or assembly 'Newtonsoft.Json, Version=, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified."

Any suggestion is appreciated.


1 Answer 1


You have to check if the NewtonSoft DLL is in the global assembly cache. You have to add it manually using "gacutil /i" in Visual Studio Console or deliver it with the solution package.

  • if you got the error like "This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded", find the solution in here: herlitz.nu/2011/11/19/…
    – Tito
    Jun 8, 2016 at 13:46

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