title: Errors when using RStudio's Git tools
body: <p>When attempting to push to GitHub from RStudio, I get the following errors. </p>
  
  <pre><code>error: unable to read askpass response from 'rpostback-askpass'
  fatal: could not read Username for 'https://github.com':
         No such device or address
  </code></pre>
  
  <p>RStudio has my origin as</p>
  
  <pre><code>https://github.com/rmscriven/other.git
  </code></pre>
  
  <p>when it actually should be</p>
  
  <pre><code>https://github.com/rmscriven/saber.git
  </code></pre>
  
  <p>RStudio will not allow me to change the origin from the version control system.  Here is what it shows: </p>
  
  <p><img src="https://i.stack.imgur.com/0BM7G.png" alt="enter image description here"> </p>
  
  <p>Is it possible to change my GitHub origin url from RStudio?</p>