title: How to locate Gemfile or bundle after "Heroku local -f Procfile.dev" commend
body: <p>I am following the instruction from Heroku's blog article: <a href="https://blog.heroku.com/a-rock-solid-modern-web-stack" rel="nofollow noreferrer">https://blog.heroku.com/a-rock-solid-modern-web-stack</a>, and at the section, where I need to set up Procfile.dev" for Heroku.</p>
  
  <p>The file needs to be place at the root of the application where my "client" (React Web Front) and "api" (Rails API backend) folders are. So, when I insert command: </p>
  
  <p>"heroku local -f Procfile.dev"</p>
  
  <p>The error indicates the following:</p>
  
  <pre><code>10:00:56 PM web.1 |  yarn run v1.9.4
  10:00:56 PM api.1 |  Could not locate Gemfile or .bundle/ directory
  [DONE] Killing all processes with signal  SIGINT
  10:00:56 PM api.1 Exited with exit code null
  10:00:56 PM web.1 Exited with exit code 
  </code></pre>
  
  <p>"</p>
  
  <p>It states that it cannot find my Gemfile, which is located inside the API folder. So, I like to ask "How to locate Gemfile or bundle after "Heroku local -f Procfile.dev" commend"??? </p>
  
  <p>Thanks</p>