Hi Suhas,
> Upon closer examination, I found that there are two commands to export to
PDF.
> C-c C-e l small-o (converts to "regular" pdf)
> C-c C-e l capital-O (converts to "presentation" pdf, i.e., converts all headings to slides)
Yes, I exported via the Beamer exporter with C-c C-e l O.
> I tested "C-c C-e l O" successfully for a simple text but I'm getting the following error for the attached file in my last email.
>
> org-latex-compile: PDF file ./presentation.pdf wasn't produced: Runaway argument
I just tried this with 8.2.5h and could not reproduce your problem.
Are you sure you're exporting the exact same file you attached?
Best,
Josiah