title: Installing a package in R throws "package is not available (for R version 3.0.1)"
body: <p>I am trying to install the following R package on my system Ubuntu 12.04 x86_64-pc-linux-gnu but it seems that my R version is higher and I am downloading a package supported on previous version...I am getting a waning:</p>
  
  <pre><code>install.packages("Spot")
  
  Warning in install.packages :
  package ‘Spot’ is not available (for R version 3.0.1)
  </code></pre>
  
  <p>I tried to install it from Package archive but it giving me this error</p>
  
  <pre><code>install.packages("~/Spot_3.2_x86_64.tar.gz", repos = NULL, type = "source", lib="/home/jarvis/R/x86_64-pc-linux-gnu-library/3.0")
  
  Warning in install.packages :
  package ‘~/R/workspace/Spot_3.2_x86_64.tar.gz’ is not available (for R version 3.0.1)
  * installing *source* package ‘Spot’ ...
  ERROR: a 'NAMESPACE' file is required
  * removing ‘/home/jarvis/R/x86_64-pc-linux-gnu-library/3.0/Spot’
  Warning in install.packages :
  installation of package ‘/home/jarvis/R/workspace/Spot_3.2_x86_64.tar.gz’ had non-zero    exit status 
  </code></pre>
  
  <p>any suggestions???</p>