Apologies if this questions have been answered elsewhere:
I am trying to combine GTFS data with the street network from StreetMap Premium, implementing the sample code found here: https://pro.arcgis.com/en/pro-app/tool-reference/conversion/connect-network-dataset-transit-sources-to-streets.htm (with appropriate changes for the local directories and making the Street Network as the North America Streets network from StreetMap Premium).
The error that I encounter is this: arcgisscripting.ExecuteError: ERROR 004411: Export of the vector data is denied. ERROR 000260: Failed to copy. This is specific to this line: arcpy.management.Copy(streets_orig, streets).
It looks like it is not possible to copy or project the StreetMap street network. Is there a workaround to enable use of StreetMap Premium street networks with GTFS data?