Hi, as mentioned in the subject I ran into this error after upgrading from 9.4 to 9.4.4.
With 9.4 org-version reports: ,---- | Org mode version 9.4 (9.4-elpa @ /home/hanns/.emacs.d/elpa/org-9.4/) `---- With 9.4.4: ,---- | Org mode version ( @ /home/hanns/.emacs.d/elpa/org-9.4.4/) `---- resulting in "version-to-list: Invalid version syntax: ‘’ (must start with a number)" when using org-caldav for example It's GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.18.9, cairo version 1.14.6) of 2020-09-19 on Ubuntu 16.04 LTS I don't have any idea where to start searching, any hints appreciated. Regards Hanns
