title: Error: Current working directory is not a Cordova-based project
body: <p>When i am running this code Error cordova plugin add cordova-plugin-customurlscheme --variable URL_SCHEME=ptw in cmd ,i am getting error "Error: Current working directory is not a Cordova-based project."
  Why this error is coming.I am unable to fix it.Here is the </p>
  
  <p><a href="http://i.stack.imgur.com/nmb0W.png" rel="nofollow">http://i.stack.imgur.com/nmb0W.png</a>
  Please suggest me.Thank you in advance.</p>