Persistent "gda-2" runtime errors with SHP files

I’m probably doing something wrong/dumb but I get persistent runtime errors “Error while parsing (file_name): gda-2” when trying to interrogate SHP files (doesn’t matter what city or region I select).

Anyone have any thoughts regarding this?

I’m running RhinoWIP/grasshopper on a 27" Retina Display iMac with 32GB RAM, a 4 GHz Intel Core i7, AMD Radeon R9 M295X 4 GB…and plenty of disk space…

Sorry for the delayed reply. Can you share a grasshopper definition that would allow us to try to repeat this on our computers?