Hello: This is on Windows 7 Emacs 23.3.1, org-version 7.8.03. (I installed org-mode inside cygwin's shell).
Here is the backtrace: Debugger entered--Lisp error: (error "Unable to create odt file (12)") signal(error ("Unable to create odt file (12)")) error("Unable to create odt file (%S)" 12) (or (zerop exitcode) (ignore (message "%s" err-string)) (error "Unable to create odt file (%S)" exitcode)) (lambda (cmd) ... stuff deleted org-odt-save-as-outfile("c:/Users/977315/Documents/projects/low-pressure-flow/workbooks/shh+cvd-design-tool-proposal/cvd-modeling-proposal.odt" ... more stuff deleted ... org-do-lparse(nil nil nil nil nil nil) org-lparse("odt" "odt" nil nil nil nil nil nil) org-export-as-odt(nil) call-interactively(org-export-as-odt) org-export(nil) call-interactively(org-export nil nil) The backtrace refers to a a non-existent odt file (see call to org-odt-save-as-outfile). Does the call stack look ok to you? Thanks, Mirko