title: I got failed to load on cloud scheduler page
body: <p>I want to create function has ability to refresh itself every 1 minute</p>
  
  <p>but when I try write code below I got error on CMD</p>
  
  <pre><code>const functions = require('firebase-functions');
  
      exports.scheduledFunction = functions.pubsub.schedule('every 1 minutes').onRun((context) =&gt; {
        console.log('This will be run every 1 minutes!');
      });
  </code></pre>
  
  <p><em>CMD when I write firebase deploy</em></p>
  
  <pre><code>Error: HTTP Error: 400, Billing must be enabled for activation of service '[cloudscheduler.googleapis.com]' in project '45545844354(fake number)' to proceed.
  </code></pre>
  
  <p>When I visit <a href="https://console.cloud.google.com/cloudscheduler?project=fake-project" rel="nofollow noreferrer">cloud scheduler</a> I got error message</p>
  
  <pre><code>Failed to load
  </code></pre>
  
  <p>About cloud scheduler , I should pay for this service and how much ?</p>
  
  <p>I want only run 2 functions working everyday</p>