title: Formula.Firewall: Query 'Sentiment Results' (step 'Custom1') references other queries or steps, so it may not directly access a data source
body: <p>I want to learn sentiment analysis and am learning from this tutorial <a href="https://community.powerbi.com/t5/Community-Blog/Sentiment-Analysis-in-Power-BI/ba-p/55898" rel="nofollow noreferrer">https://community.powerbi.com/t5/Community-Blog/Sentiment-Analysis-in-Power-BI/ba-p/55898</a>, but I got an error:</p>
  
  <blockquote>
    <p>Formula.Firewall: Query 'Sentiment Results' (step 'Custom1') references other queries or steps, so it may not directly access a data source. Please rebuild this data combination.</p>
  </blockquote>
  
  <p>I tried to change Data source setting > Edit privacy level, but that did not work.</p>