002823: One or more input GTFS folders is missing required GTFS files. The required GTFS files are: stops.txt, routes.txt, trips.txt, stop_times.txt, and either calendar.txt, calendar_dates.txt, or both. Folders with missing files:<value>

Description

The tool requires that the GTFS dataset contain these files.

Solution

Use a valid GTFS dataset with the required files.