title: missing script: build - firebase deploy
body: <p>When I deployed my firebase function project, this error appeared "missing script:build" and I try to fix it but it fails.
  <strong>Please help me</strong></p>
  
  <blockquote>
    <p>This is error screenshot 
    <a href="https://i.stack.imgur.com/0nSOQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0nSOQ.png" alt="enter image description here"></a></p>
  </blockquote>