title: bundle install fail "..does not appear to be a git repository fatal: Could not read from remote repository."
body: <p>I have a gem file in which i am trying to get 
  "gem 'twitter-bootstrap-rails', git: '<a href="https://github.com/seyhunak/twitter-bootstrap-rails.git" rel="nofollow">https://github.com/seyhunak/twitter-bootstrap-rails.git</a>'"</p>
  
  <p>Using <code>bundle install</code> command and it gives the below error:</p>
  
  <pre><code>C:\Sooraj\Playdrone\playdrone-master&gt;bundle install
  
  Fetching https://github.com/seyhunak/twitter-bootstrap-rails.git
  fatal: '/cygdrive/c/Sooraj/Playdrone/playdrone-master/C:/Ruby22/lib/ruby/gems/2.
  2.0/cache/bundler/git/twitter-bootstrap-rails-eff46a5fc3c9c652c290119047c5ec9247068903' does not appear to be a git repository
  fatal: Could not read from remote repository.
  
  Please make sure you have the correct access rights
  and the repository exists.
  Retrying git clone --no-checkout --quiet "C:/Ruby22/lib/ruby/gems/2.2.0/cache/bundler/git/twitter-bootstrap-rails-eff46a5fc3c9c652c290119047c5ec9247068903" "C:/
  Ruby22/lib/ruby/gems/2.2.0/bundler/gems/twitter-bootstrap-rails-38476dbd7f9a" 
  due to error (2/4): 
  Bundler::Source::Git::GitCommandError Git error: 
  command `git clone --no-checkout --quiet "C:/Ruby22/lib/ruby/gems/2.2.0/cache/bundler/git/twitter-bootstrap-rails-eff46a5fc3c9c652c290119047c5ec9247068903" "C:/Ruby22/lib/ruby/gems/2.2.0/bundler/gems/twitter-bootstrap-rails-38476dbd7f9a"` 
  in directory C:/Sooraj/Playdrone/playdrone-master has failed.
  If this error persists you could try removing the cache directory 
  'C:/Ruby22/lib/ruby/gems/2.2.0/cache/bundler/git/twitter-bootstrap-rails-eff46a5fc3c9c652c290119047c5ec9247068903'
  fatal: '/cygdrive/c/Sooraj/Playdrone/playdrone-master/C:/Ruby22/lib/ruby/gems/2.2.0/cache/bundler/git/twitter-bootstrap-rails-eff46a5fc3c9c652c290119047c5ec9247068903' 
  does not appear to be a git repository
  fatal: Could not read from remote repository.
  </code></pre>
  
  <p>But the git url is correct.<br>
  Its asking me to delete the cache folder and I delete it and run the command and I get the same error.</p>
  
  <p>Can anyone please help what this error is and how I can rectify?</p>