title: Why is 'Updating the Git index failed' displayed
body: <p>I am using Windows. When staging files I get this error.</p>
  
  <p><code>Updating the Git index failed. A rescan will be automatically started to resynchronize git-gui.</code></p>
  
  <p>followed by a list of files which have been converted from LF to CRLF</p>
  
  <p>After a lot of reading up on the CRLF / LF issue with Git usage cross platform, I more or less understand what is going on, and I am trying to determine which autocrlf setting is best for me, but I cant understand why Git says that Updating the index failed. My understanding is that it has converted the EOF's so what is the problem with that and why is it telling me that updating the index has failed. Do I need to fix something ( other than picking an appropriate autocrlf setting) or can I just proceed</p>
  
  <p>I then have two options Continue and Unlock Index, what do these mean and what is the best course of action.</p>