On Sat, Apr 26, 2014 at 11:57 AM, James Saracco <jsara...@birdpop.org>wrote:

>
> Dear group,
> I'm a new Lyx user. I'm trying to add the Rnw(knitr) module in the
> document -> settings, but get the following message:
> "The module knitr requires a packages that is not available in your LaTex
> installation, or a converter that you may not have installed. LaTex output
> may not be possible. Missing prerequisites: knitr->latex"
> I'm then referred to section 3.1.2.3 of the User's manual, which wasn't
> too helpful. From Stackoverflow forum, I found reference to this problem in
> Stackoverflow forum, which suggested a PATH problem. So I added the path to
> my R installation to the list of PATH prefixes under the preferences tab
> and reconfigured. But that didn't seem to do anything.
>

What about adding it to the Windows path? That's what I would try. I have
written detailed instructions to this list before on how to add something
to the path. Basically, you have to go to the control panel, and edit the
environment variables. Choose the PATH variable, and add it there,
prepended with a semicolon. Then try the reconfigure. One way to test
whether the add to path process worked is to open a terminal and type the
name of the program from there. If you can't open R (or whatever is needed
to do the conversion) from a normal terminal, that could be the issue. I
had this very problem at one point with Dia.

I installed Lyx using the LyX-2.0.7-Bundle-4.exe windows installer. I've
> installed on both Windows 7 (desktop) and Windows 8 (notebook) machines
> using all of the default installer options. Any thoughts on this would be
> appreciated. Thanks!
>

I hope this helps. If you are still stuck let me know and I may try to test
it myself on my Windows machine.

Jacob

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