State Sets Error and Max NET Unhandled Exceptions | How to fix it?

State Sets Error and Max NET Unhandled Exceptions | How to fix it? 

“Find this file …\bin\assemblies\Autodesk.Max.StateSets.dll (example for path – C:\Program Files\Autodesk\3ds Max 20XX\bin\assemblies\Autodesk.Max.StateSets.dll) and Rename it to Autodesk.Max.StateSets.dll.back

Done!