After emacs -Q:
M-x customize-group RET org-table-calculation
Navigate to the Org Table Duration Custom Format and expand it.
Action the Value Menu, and choose any option.
Error: widget-apply: Wrong type argument: char-or-string-p, 'minutes
Looks like the :type specification for this variable has nested quotes.
The value for each symbol should be unquoted.
Emacs : GNU Emacs 31.0.50 (build 67, x86_64-pc-linux-gnu, GTK+ Version
3.24.33, cairo version 1.16.0)
of 2025-02-03
Package: Org mode version 9.7.11 (release_9.7.11 @
/home/tbb/code/emacs/emacs/lisp/org/)