No outputs found for default parameter values, please update your model definition. Maybe you forgot to internalize data?
Unfortunately as a new user I cannot upload my file. I see someone else had this error.
I checked the model: There is a curve parameter which doesn’t have internalized data. Please open your model locally, set a curve, and then right-click the curve parameter and Internalise data. This will include the definition of the curve in the Grasshopper model.
Can someone please explain what this response a little better? I cannot find this terminology anywhere in the Rhino or Grasshopper help files.