[OS X Emacs] 25.3.50;

[Win Treese]

The example seems to work fine with the current Aquamacs nightly build, htmlize 20180923.1829 (latest) from MELPA, and Org 9.2.5 (latest) from GNU.

Which suggests that David’s hypothesis about version incompatibility is likely the cause.

 - Win

> On Aug 8, 2019, at 5:00 AM, David Reitter <david.reitter at gmail.com> wrote:
> 
> This could be an incompatibility between the version of htmlize that comes with Aquamacs and org-mode.  Hope that helps.
> 
> 
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> 
>> On Aug 7, 2019, at 10:52 PM, Peter Saeta <saeta at g.hmc.edu> wrote:
>> 
>> 
>> 
>> Enter your bug report here.
>> 
>> I have copied the output in the debugger that the error produces. It arises on attempting to publish or export from org mode when values, such as the document title, are set in the document. 
>> 
>> The following is in the top of the document that generated the error below:
>> 
>> #+title: Diagnostic Exam
>> 
>> * Overview