title: unable to install latest version of rlang rstudio
body: <p>Im trying to install the latest (or at least version 0.4.3 required for another package) of rlang but can only install v 3.5.</p>
  <p>I have tried to close down Rstudio/restart session, remove and re-install using:</p>
  <pre><code>install.packages(&quot;rlang&quot;)
  install.packages(&quot;rlang&quot;, type=&quot;source&quot;)
  devtools::install_github(&quot;rlang&quot;)
  remotes::install_github(&quot;r-lib/rlang&quot;)
  install.packages(&quot;rlang_0.4.9.tar.gz&quot;, repo=NULL, type=&quot;source&quot;)
  </code></pre>
  <p>the error messages i get is</p>
  <blockquote>
  <p>Error: Failed to install 'rlang' from GitHub:
  (converted from warning) installation of package ‘C:/Users/xxx/AppData/Local/Temp/RtmpARJArh<br />
  /file46b06f822b7a/rlang_0.4.10.9000.tar.gz’ had non-zero exit status</p>
  </blockquote>
  <p>I have also tried to remove dplyr (the package i want to use that depends on rlang v.0.4.3) and reinstalling but it still gives me the error message:</p>
  <blockquote>
  <p>Error: package or namespace load failed for ‘dplyr’ in
  loadNamespace(i, c(lib.loc, .libPaths()),           versionCheck =
  vI[[i]]): namespace ‘rlang’ 0.3.4 is already loaded, but &gt;= 0.4.3 is
  required</p>
  </blockquote>
  <p>There seems to be a common problem with installing rlang, bu havnt been able to find a solution on any forum except those that I have tried.</p>
  <p>Thanks in advance for your help</p>