how to add third party dll reference to F# project?

Question

I\'m adding a third party dll reference to my F# project. I added the dll in references and when I use this i.e highlight the code and do Alt+Ent, I get the error \"The namespa

Answer 1

In my case my F# project was referencing a C# DLL but I had the same issue, "The namespace or module 'MyModule' not defined", when doing "open MyModule".

The solution was to edit the settings to use the same framework (one was using 4.5 and the other 4.0).