Visual Studio Error

I am trying to create a component with VS 2019 and I am missing grasshopper package, how can I resolve this!

are you starting with the correct templates ?

did you read through those great guides:

if 2x yes - you need to provide more info I guess.
kind regards - tom

Yes I have followed the guide from rhino website! My rhino version is 7.35! and I think this templates are made for rhino 7.13? Also do you know any way that I can reference the grasshopper?

Update - When I manually added RhinoCommon.dll and Grasshopper.dll it seems to work! is it ok to do it this way?