From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric S Fraga <e.fraga@ucl.ac.uk>
Subject: Re: Colon in block name?
Date: Thu, 12 Feb 2015 16:03:16 +0000
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In-Reply-To: <877fvnxime.fsf@hornfels.zedat.fu-berlin.de> (Loris Bennett's
	message of "Thu, 12 Feb 2015 16:19:21 +0100")
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To: Loris Bennett <loris.bennett@fu-berlin.de>
Cc: emacs-orgmode@gnu.org

On Thursday, 12 Feb 2015 at 16:19, Loris Bennett wrote:
> Hi,
>
> I want to export to LaTeX and refer to tables and code blocks as in the
> example below.  However a name with a colon, such as 'tab:my_data' used
> as a variable for a source block fails:
>
> org-babel-ref-resolve: Reference 'my_data' not found in this buffer

The problem is that you need to get rid of the empty lines between the
table information (name, caption) and the actual table:

> My data can be found in Table [[tab:my_data]].
>
> #+CAPTION: My data
> #+NAME: tab:my_data
>
> | a | b |
> |---+---|
> | 2 | 4 |
> | 3 | 9 |

Delete the line after the #+name and it will work: if you look at the
LaTeX, you'll see a table environment around the tabular structure and
that's needed to get labels that you can referece.

Not sure why the empty line matters, mind you...

HTH,
eric
-- 
: Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.1, Org release_8.3beta-816-gae83b3