How can I fix assembly version conflicts with JSON.NET after updating NuGet package references in a new ASP.NET MVC 5 project?

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Here the steps I used to fix the warning:

  • Unload project in VS
  • Edit .csproj file
  • Search for all references to Newtonsoft.Json assembly
    • Found two, one to v6 and one to v5
    • Replace the reference to v5 with v6
  • Reload project
  • Build and notice assembly reference failure
  • View References and see that there are now two to Newtonsoft.Json. Remove the one that’s failing to resolve.
  • Rebuild – no warnings

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