title: How to fix "Can't find training file" error?
body: <p>I get this error:</p>
  <pre><code>Error: Can't find training file, please try to specify it with the --source option
  </code></pre>
  <p>I thought it was a file path issue, so I added source and still got an error:</p>
  <pre><code>(node:36619) UnhandledPromiseRejectionWarning: Can't parse json file &quot;/Users/Cos-Ibe/Futo_Chatbot/data/data.json&quot;
  SyntaxError: Unexpected token  in JSON at position 0
  (Use `node --trace-warnings ...` to show where the warning was created)
  (node:36619) UnhandledPromiseRejectionWarning: Unhandled promise 
  rejection. This error originated either by throwing inside of an async 
  function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
  (node:36619) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
  </code></pre>