I recently installed Org 9.0 and ‘org-ctrl-c-ctrl-c’ often complains about
user-error: ‘C-c C-c’ can do nothing useful here. However when I use it repeatedly it works suddenly, although I didn't change anything ?
org-plus-contrib packages and reinstall to fix this problem.
@John Kitchin thanks. I will use this temporary fix.
(defun my-org-ctrl-c-ctrl-c () "Fix blank line issue." (interactive) (save-excursion (org-babel-goto-src-block-head) (org-ctrl-c-ctrl-c)))