title: Installation Error When Installing Package from R Forge
body: <p>I am trying to update <code>zoo</code> from R Forge.</p>
  
  <pre><code>install.packages("zoo", repo = "http://r-forge.r-project.org")
  </code></pre>
  
  <p>But I get the following error</p>
  
  <blockquote>
    <p>Installing package(s) into ‘C:/REVOLU~1/R-COMM~1.3/R-212~1.2/library’
        (as ‘lib’ is unspecified)
        Warning in install.packages :
          cannot open: HTTP status was '404 Not Found'
        Warning in install.packages :
          cannot open: HTTP status was '404 Not Found'
        Warning in install.packages :
          unable to access index for repository <a href="http://r-forge.r-project.org/bin/windows/contrib/2.12" rel="nofollow">http://r-forge.r-project.org/bin/windows/contrib/2.12</a>
        Warning in install.packages :
          package ‘zoo’ is not available</p>
  </blockquote>
  
  <p>I am using Revolution R Community version 4.3 (64-bit).</p>
  
  <pre><code>install.packages("zoo")
  </code></pre>
  
  <p>Installs a slightly dated version of zoo</p>