From mboxrd@z Thu Jan  1 00:00:00 1970
From: Charles Berry <ccberry@ucsd.edu>
Subject: Re: Bug: problem when exporting a org-mode file with a lots of code
 blocks
Date: Tue, 10 Mar 2015 17:19:04 +0000 (UTC)
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XIE Yuheng <xyheme <at> gmail.com> writes:

> 
> 
> Bug: org-babel-parse-src-block-match reporting "Wrong type argument:
> stringp, nil" when exporting a org-mode file with a lots of code blocks
> [8.3beta (release_8.3beta-895-g375c83  <at>  
> /usr/share/emacs/site-lisp/org/)]
> 
> the following is *Messages* buffer
>    https://www.refheap.com/98243
> the following is the org-mode file with a lot of code blocks
>    https://github.com/the-little-language-designer/cicada-nymph/blob/
master/cicada-nymph.org


Look at the *Messages*  buffer and you will see a list of src blocks that were 
processed without error. 

The src block *after* the last block in the list (before the error message) 
caused the error.

`org-babel-parse-src-block-match' expects a language for a src block.

Specify a language for every src block and it will export.

HTH,

Chuck