title: TeX package not installing in R version 3.1.0
body: <p>I am trying to generate a pdf from .Rnw file using knitr package.
  Please find the output of <code>sessioninfo()</code> below</p>
  
  <pre><code>R version 3.1.0 (2014-04-10)
  Platform: x86_64-w64-mingw32/x64 (64-bit)
  
  locale:
  [1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252   
  [3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
  [5] LC_TIME=English_United States.1252    
  
  attached base packages:
  [1] stats     graphics  grDevices utils     datasets  methods   base     
  
  other attached packages:
  [1] knitr_1.6
  
  loaded via a namespace (and not attached):
  [1] evaluate_0.5.5 formatR_0.10   stringr_0.6.2  tools_3.1.0 
  </code></pre>
  
  <p>I have installed knitr but am unable to compile the code in the .Rnw file.
  There is a popup that is saying "No TeX installation detected. Please install TeX before compiling". However both TeX and pdfLaTeX is not installing for this version of R, a warning message comes saying that TeX or pdfLaTex is not available.</p>
  
  <p>Thanks in advance.</p>