Hi All,

I just did a clean install of Xubuntu 20.04.  I also installed emacs27 (from this repository:ppa:kelleyk/emacs)
 
When I try to export any snippet from org-mode by calling org-export-dispatch, my freshly installed emacs complains:

"let: Symbol’s value as variable is void: org-table-header-line-p"

Any help would be much appreciated

Santiago Mejia