Comment 12 for bug 978728

Confirmed that this works as expected. I was able to create a new Google Calendar event in Evolution and it appeared in Google Calendar within seconds and with no error. Deleting worked as expected too.

For anyone else wanting to test, add the pin to precise-proposed as per Martin's link and the type the following:

aptitude-update
aptitude install evolution-data-server/precise-proposed evolution-data-server-common/precise-proposed libcamel-1.2-29/precise-proposed