R devel - Dec 2010 - Error in generating sweave-tex -> pdf file

Hi,
I created a Sweave file (see below). when I want to convert tex 
file generated from it into pdf, I get error message as follows:
> texi2dvi("test.tex", pdf=TRUE)
Error in texi2dvi("test.tex", pdf = TRUE) : 
  Running 'texi2dvi' on 'test.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.8 \begin
          {Schunk}
? 
! Interruption.
! Interruption.
<to be read again> 
                   {
l.8 \begin{
           Schunk}
! Undefined control sequence.
l.9 \begin
          {Sinput}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
------------------------
test.Rnw

\usepackage{Sweave}
\ documentclass [ a4paper ]{ article }
\ title { Sweave Example 1}
\ begin { document }
\ maketitle
In this example we embed parts of the examples from the
help page into a \ LaTeX {} document :
<<a>>y=2
y = y +1
@
which shows that the location parameter of the Ozone
distribution varies significantly from month to month . Finally we
include a boxplot of the data :

\end{ document }

On 22/12/2010 12:27 PM, carol white wrote:
> Hi,
> I created a Sweave file (see below). when I want to convert tex
> file generated from it into pdf, I get error message as follows:
>
> >  texi2dvi("test.tex", pdf=TRUE)
> Error in texi2dvi("test.tex", pdf = TRUE) :
>    Running 'texi2dvi' on 'test.tex' failed.
> LaTeX errors:
> ! Undefined control sequence.
> l.8 \begin
>            {Schunk}
The Schunk, Sinput, and Soutput environments are defined in Sweave 
package.  Something went wrong and latex didn't find them, either 
because it didn't find Sweave.sty, or because it did, but that file has 
been messed up.

> ?
> ! Interruption.
> ! Interruption.
> <to be read again>
>                     {
> l.8 \begin{
>             Schunk}
> ! Undefined control sequence.
> l.9 \begin
>            {Sinput}
> The control sequence at the end of the top line
> of your error message was never \def'ed. If you have
> ------------------------
> test.Rnw
>
> \usepackage{Sweave}
> \ documentclass [ a4paper ]{ article }
> \ title { Sweave Example 1}
> \ begin { document }
> \ maketitle
Are there really spaces between the backslashes and the macros?  I think 
that doesn't work.  You should also have the \usepackage{Sweave} line 
after the opening \documentclass line.

Duncan Murdoch
> In this example we embed parts of the examples from the
> help page into a \ LaTeX {} document :
> <<a>>> y=2
> y = y +1
> @
> which shows that the location parameter of the Ozone
> distribution varies significantly from month to month . Finally we
> include a boxplot of the data :
>
> \end{ document }
>
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