title: When passing `label_mode="binary"`, there must be exactly 2 class_names. Received: class_names=[]
body: <p>I'm new to deep learning and now I'm trying to classify skin diseases. I've tried this code in google colab however it gives me an error. <strong>When passing <code>label_mode=&quot;binary&quot;</code>, there must be exactly 2 class_names. Received: class_names=[]</strong></p>
  <p><a href="https://i.stack.imgur.com/E852h.png" rel="nofollow noreferrer">MY CODE</a></p>