title: Angular Fire Store - Error "No Properties in common with type 'GetOptions'."
body: <p>i'm trying to get one value from a document. I tried the following:</p>
  
  <pre><code>getAuthorData(){
  const test = this.afs.collection('Authors').doc('Test').get('name');
  console.log(test);
  }
  </code></pre>
  
  <p>Unfortunately i'm receiving the following error:</p>
  
  <blockquote>
    <p>ERROR in src/app/blogdetail/blogdetail.component.ts(55,65): error TS2559: Type '"name"' has no properties in common with type 'GetOptions'.</p>
  </blockquote>