Error message syncing with dot mac

Question

I keep getting the following errormessage after syncing ical with my dotmac account (I typed *** exact as possible, but I not sure about the spaces):
* -[CalendarChangeLogMapper
performSelector:withObject:]: null selector
I have no idea what this means, or how to correct this.
Anyone?

Answer 1

Thanks Dancin'. By the way, I solved my problem as follows:
1. I unregistered both my main computer (running Tiger) and my laptop (running 10.3)
2. After unregistering both computers I responded to the message about deleting unused iSync files on dotMac and I deleted iCal only.
3. Then I re-registered my main computer and performed the initial sync for iCal only (all calendars). That worked, whereas before I was getting an error message.
4. I connected my Palm device and launched iSync and reset the Palm calendar and ToDo items. This worked fine whereas before I was getting an error message.
5. I went to my laptop (connected to the LAN) and registered it to dotMac.
6. I reset my iCal on the laptop.
The suggestion to do all this came from Apple after i submitted a trouble report to them as per an earlier suggestion by some bright person in this thread. They responded within 24 hours with a long email with the above procedure. So it appears that there are known issues with Tiger because they asked me to send them any calendar files that ended up causing a problem. I didn't really have any corrupted files apparently.
Three things they did suggest as a best practice when using iCal:
- Create finite events that have a beginning and an end. Try not to let events continue over several years.
- Examine To Do item, titles, and notes to verify the integrity of the data.
- Try removing the alarms
Hope this helps!