Dear all the exporter seems to have stopped working in all configurations. i get the following error org-export-execute-babel-code: Wrong number of arguments: (lambda (reference-buffer) "Execute all Babel blocks in current buffer. REFERENCE-BUFFER is the buffer containing a pristine copy of the buffer being processed. It is used to properly resolve references in source blocks, as modifications in current buffer may make them unreachable." (interactive) (let ((wconfig (current-window-configuration))) (unwind-protect (progn (save-excursion (let ((case-fold-search t) (org-babel-exp-reference-buffer reference-buffer) (regexp (concat org-babel-inline-src-block-regexp "\\|" org-babel-lob-one-liner-regexp "\\|" "^[ ]*#\\+BEGIN_SRC"))) (goto-char (point-min)) (while (re-search-forward regexp nil t) (if (let (...) (unwind-protect ... ...)) nil (let* (... ... ... ...) (cond ... ... ...) (set-marker begin nil) (set-marker end nil))))))) (set-window-configuration wconfig)))), 0 any clue anyone? best Z