Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

On Ubuntu Natty I've got a weird problem using evolution. A coworker (using Outlook) sends me an appointment request. The mail is received in Evolution but the 'Accept' and 'Deny' buttons are greyed out and not clickable. Instead there is a message "searching for an existing version of this appointment" permanently visible. I have no way of either accept or refuse the appointment.

Any hints?

share|improve this question
up vote 2 down vote accepted

I got the same problem using evolution 2.32.2: I couldn't respond to Outlook invitations because the program waited forever with the message "searching for an existing version of this appointment".

I use a google calendar account as my default calendar, so the solution I found was to delete that calendar, and then add it again (not nice, but the best I could think of).

If you're not able to delete the calendar by right clicking on it (what seems to be another problem with evolution), then you have to open the gconf-editor, go to /apps/evolution/calendar/sources and delete the entries corresponding to the google calendar.

HTH, Damian.

share|improve this answer
Thanks, this worked for me too. I have a google calendar and an outlook calendar. I had to remove both, and re-set each up again, but this fixed the disabled buttons. – finley Jul 26 '11 at 8:39

I got this using exchange. I just went to perms of Calendar and added my account from the GAL and set role to owner. Hope this helps someone.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.