title: ValueError: Input 0 of layer "sequential" is incompatible with the layer: expected shape=(None, 455, 30), found shape=(None, 30)
body: <p><a href="https://www.youtube.com/watch?v=z1PGJ9quPV8&amp;t=28s" rel="nofollow noreferrer">https://www.youtube.com/watch?v=z1PGJ9quPV8&amp;t=28s</a>
  Here is the little project of Cancer dectection, and it has already offer the dataset and colab code, but i got problem when excute</p>
  <pre><code>model.fit(x_train, y_train, epochs=1000)
  </code></pre>
  <p>it shows:   ValueError: Input 0 of layer &quot;sequential&quot; is incompatible with the layer: expected shape=(None, 455, 30), found shape=(None, 30)</p>
  <p>i look at the comments, some people has the same problem</p>