title: Could not find 'sass-listen' (~> 4.0.0) among 49 total gem(s) (Gem::MissingSpecError)
body: <p>When i want to run watcher in the VS terminal it gives me the following error:</p>
  
  <blockquote>
    <p>Could not find 'sass-listen' (~> 4.0.0) among 49 total gem(s)
    (Gem::MissingSpecError) Checked in
    'GEM_PATH=/Users/mohammadullahasrar/.rvm/gems/ruby-2.6.4:/Users/mohammadullahasrar/.rvm/rubies/ruby-2.6.4/lib/ruby/gems/2.6.0',
    execute <code>gem env</code> for more information</p>
  </blockquote>
  
  <p>I installed SASS, npm and node.</p>