Resharper indexing generated code inside "obj" folder, causes invalid warnings about ambiguous code

We use the RazorGenerator tool/nuget package: https://github.com/RazorGenerator/RazorGenerator - it compiles Razor views into csharp files for quicker load times/etc. - and usually this works fine, however ever since we added a helper method in Razor, Resharper is complaining about Ambigiuous Reference. I don't even understand why Resharper is analyzing my obj folder, which is where this generated code is going. Is there any way to get Resharper to stop looking there? I tried to add "obj" as a generated folder path, but it says it's not part of my solution, and won't let me.

Thanks.