The type 'System.Object' is defined in an assembly that is not referenced

Question

I installed a Microsoft ASP.NET Web API Compression nuget package to my project and added a line to WebApiconfig inside Register method as shown in this link https://www.nug

Answer 1

Installing and removing System.ValueTuple via Nuget left a System.ValueTuple.dll file in my bin folder. Deleting it solved the problem for me.