missing_calendar_and_calendar_date_files

Missing GTFS files calendar.txt and calendar_dates.txt.

ERRORGTFSpackagedraftMobilityData canonical GTFS Schedule validator

Related

• Source: MobilityData canonical GTFS Schedule validator

Citations

[1] missing_calendar_and_calendar_date_files rule reference

Rule metadata

Code	missing_calendar_and_calendar_date_files
Standard	GTFS
Source	MobilityData canonical GTFS Schedule validator
Severity	ERROR
Category	package
Maturity	draft
Tags	mobilitydata, gtfs, package
Retrieved	2026-06-12
Reference	https://gtfs-validator.mobilitydata.org/rules.html#missing_calendar_and_calendar_date_files