Calendar/KOrganizer, F21: select a valid collection first?

[Richard Z]

Hi,

trying to add an event I get the message 
  "select a valid collection first"

There is nothing obvious in the dialog where I could select
any collection. On top of the dialog window is a "Calendar"
dropdown which unfortunately does not drop down when clicked.

I did use the Calender in previous versions of Fedora but not
since I upgraded to F21.

Thanks for any hints,
Richard

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