ICS File Errors
Choose what you’re seeing. This hub routes you to the right guide, and the fastest fix.
Common symptoms
- My .ics file won’t import (Google Calendar / Outlook / Apple Calendar)
- “Invalid ICS file” / validation failed
- Events show at the wrong time (timezone issues)
- Import created duplicate events
- How to open an .ics file and add it to a calendar
Deeper troubleshooting
- TZID/VTIMEZONE deep dive
- Generate correct .ics files (templates)
- Validate & fix programmatically (API)
Best practice
Always start by validating the file. Fix the first error shown — later errors often disappear.