VB errors: type or namespace not defined (but defined)

[MaciejWojda]

I cannot build the solution because of missing definition of types, which I have defined. Does anybody have an idea what's going on and how to resolve it?

[MaciejWojda · Accepted solution]

Well, I found where is the problem. I had also warnings like below:

The primary reference "Autodesk.Connectivity.Extensibility.Framework" could not be resolved because it was built against the ".NETFramework,Version=v4.7" framework. This is a higher version than the currently targeted framework ".NETFramework,Version=v4.5".

The solution is just to open properties of project and change target framework to suitable, in my case .NET 4.7.

I hope I can help someone with similar difficulties 🙂