title: RSelenium Browser not Opening
body: <p>I'm running an RSelenium browser in R. I had code written for it that was working completely fine until I tried to run it yesterday. Now, when I try to start a browser with <code>rd = rsDriver()</code>, I get the following message:</p>
  
  <pre><code>&gt;checking Selenium Server versions:
  &gt; 
  &gt; BEGIN: PREDOWNLOAD
  &gt; 
  &gt; BEGIN: DOWNLOAD
  &gt; 
  &gt; BEGIN: POSTDOWNLOAD
  &gt; 
  &gt; checking chromedriver versions:
  &gt; 
  &gt; BEGIN: PREDOWNLOAD
  &gt; 
  &gt; BEGIN: DOWNLOAD
  &gt; 
  &gt; BEGIN: POSTDOWNLOAD
  &gt; 
  &gt; checking geckodriver versions:
  &gt; 
  &gt; BEGIN: PREDOWNLOAD
  &gt; 
  &gt; BEGIN: DOWNLOAD
  &gt; 
  &gt; BEGIN: POSTDOWNLOAD
  &gt; 
  &gt; checking phantomjs versions:
  &gt; 
  &gt; BEGIN: PREDOWNLOAD
  &gt; 
  &gt; BEGIN: DOWNLOAD
  &gt; 
  &gt; BEGIN: POSTDOWNLOAD
  &gt; 
  &gt; [1] "Connecting to remote server"
  &gt; 
  &gt; Could not open chrome browser.
  &gt; 
  &gt; Client error message:
  &gt; 
  &gt; Undefined error in httr call. httr output: Failed to connect to
  &gt; localhost port 4567: Connection refused
  &gt; 
  &gt; Check server log for further details.
  &gt; 
  &gt; $client
  &gt; 
  &gt; [1] "No sessionInfo. Client browser is mostly likely not opened."
  &gt; 
  &gt; $server
  &gt; 
  &gt; Process Handle command   : C:\Users\Jeffrey
  &gt; Jones\AppData\Local\Temp\RtmpszSD5f\file2958371c4c79.bat 
  &gt; 
  &gt; system id : 14508
  &gt; 
  &gt; state     : exited
  &gt; 
  &gt; Warning message:
  &gt; 
  &gt; In rsDriver() : Could not determine server status.
  &gt; 
  </code></pre>
  
  <p>And then nothing else works. I don't understand because the code was working fine 2 days ago. Any help would be greatly appreciated! Thank you!</p>