Forum OpenACS Development: Re: cal_item_new doesn't exist inside dotlrn
i can't reproduce this on my instances. Does this happen with a fresh install from the oacs-5-10 branch?
In general uses the dotlrn calendar just the plain OpenACS calendar. So, when adding a calender item in a plain OpenACS calendar works for you, then i would assume local modification on your instance in the dotln calendar or some mixed installation with old package versions.
No local modification was made in those packages.