Tim, et al., > These types of errors are frequently caused by a 'mixed' installation > of org versions. This will happen if you upgrade org when org is > already loaded in the instance of emacs used to perform the upgrade.
a question: is there any way that we can, as org starts up, detect either the actuality, or possibility, of a mixed installation? maybe something like ---- (assert (eq 1 (length (seq-filter (lambda (d) (file-exists-p (concat d "/" "org.el"))) load-path)))) ---- or some such? (well, maybe fail in a more user-friendly way... :) cheers, Greg