title: fatal: Unable to read current working directory: No such file or directory
body: <p>I'm a Windows 10 user, using gitbash as a command prompt. </p>
  
  <p>After I changed the branch to <code>master</code>, suddenly I'm struck with this error message.</p>
  
  <pre><code>REDMOND+ahkim@ahkim-1211 MINGW64 /c/git/src/SI_leadscore/SalesIntelligence/LeadScore/Model (aerin/LeadOptimizerModel)
  $ git checkout master
  Switched to a new branch 'master'
  Branch 'master' set up to track remote branch 'master' from 'origin'.
  
  REDMOND+ahkim@ahkim-1211 MINGW64 /c/git/src/SI_leadscore/SalesIntelligence/LeadScore/Model
  $ git checkout LeadOptimizerModel
  fatal: Unable to read current working directory: No such file or directory
  
  REDMOND+ahkim@ahkim-1211 MINGW64 /c/git/src/SI_leadscore/SalesIntelligence/LeadScore/Model
  $ git branch
  fatal: Unable to read current working directory: No such file or directory
  
  REDMOND+ahkim@ahkim-1211 MINGW64 /c/git/src/SI_leadscore/SalesIntelligence/LeadScore/Model
  $ git status
  fatal: Unable to read current working directory: No such file or directory
  </code></pre>
  
  <p>git checkout, git branch, git status, etc.
  None of them works.</p>