I am new to Linux and to Korganizer 4.13.3. To learn the latter, I am following the tutorial from their web site:
When I click in the agenda view, and enter information about an event, it doesn't save any information, but I get the following message:
You created an incidence in a calender that is currently filtered out. On the left sidebar, enable it in the calender manager to see the incidence.
I am not seeing a calendar manager in my left sidebar, and have no idea how to proceed (I am using Ubuntu 14.04 LTS, and I get this same problem whether I am in Unity or KDE (I am using Kubuntu)).