title: Watson Conversation_Error in Environment Variable
body: <p>I am trying to copy Watson conversation simple node js application from GitHub (<a href="https://github.com/watson-developer-cloud/conversation-simple" rel="nofollow noreferrer">https://github.com/watson-developer-cloud/conversation-simple</a>) and running in my local.
  I have created service key and setup workspace. Next I have updated Workspace ID, User ID &amp; Password in .env, app.js file. I have imported existing car_workspace.json file only and used corresponding Workspace ID.
  While running in local host I am getting "The app has not been configured with a  environment variable."
  Please help me to understand if I am missing anything.</p>