From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vikas Rawal <vikaslists@agrarianresearch.org>
Subject: member-ignore-case: Wrong type argument: stringp, nil
Date: Wed, 12 Oct 2016 09:10:13 +0530
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To: org-mode mailing list <emacs-orgmode@gnu.org>

I get this message when trying to export an org file (with embedded =
source code blocks) to latex:

member-ignore-case: Wrong type argument: stringp, nil

How do I go about figuring out what exactly is going wrong?

I have tried to isolate the problem by removing stuff from the file, to =
see when does the problem go away. Some source code blocks seem to cause =
it. If I remove them, the problem goes. But there is nothing in those =
code blocks.. For example, the one below is giving me trouble.=20

#+NAME: australiafabainst
#+BEGIN_SRC R :results output graphics :exports results :file =
australia-faba-instability.png :width 1200 :height 700  :type cairo =
:family serif :session pulses

## Some R code here to make a graph

#+END_SRC

But there are many others like this, which are not giving any error.

Vikas