title: Only one class may appear in a supertype list
body: <p>I am running into trouble with having two superclasses. When I am adding the MainActivity() I am recieving the error: Only one class may appear in a supertype list.</p>
  <p>Any ideas on how I can work around this problem?</p>
  <pre><code>class ExaminationFragment : Fragment(),MainActivity()  {
  
      override fun onCreateView(
          inflater: LayoutInflater, container: ViewGroup?,
          savedInstanceState: Bundle?
      ): View? {
          // Inflate the layout for this fragment
          return inflater.inflate(R.layout.fragment_examination, container, false)
      }
  
  }
  </code></pre>