At Mon, 08 Nov 2010 09:45:25 -0500, Nick Dokos wrote: > Something to do with the compilation of the org-babel-map-src-blocks > macro, no doubt. I don't see it with uncompiled files. Not a solution, but some debugging showed that `org-babel-get-src-block-info' fails to get the info of the source block when run byte-compiled. If I change the last sexp of the function (when info (append info (list name indent))) to (if info (append info (list name indent)) (error "EMPTY INFO")) And run byte-compiled Org, the EMPTY INFO error is thrown before the invalid argument. Best, -- David -- OpenPGP... 0x99ADB83B5A4478E6 Jabber.... dmjena@jabber.org Email..... dmaus@ictsoc.de