title: UICollectionView Layout Issue
body: <p>I am using <code>UICollectionView</code> using the flow layout.
  I have made a custom <code>UICollectionViewCell</code> for the same.
  But on running the project the console keeps on throwing this error- </p>
  
  <pre><code>The behavior of the UICollectionViewFlowLayout is not defined because:
   the item height must be less that the height of the UICollectionView minus the section insets top and bottom values.
  </code></pre>
  
  <p>I have made sure that the size of the cell is correct</p>
  
  <p>Has anyone been able to resolve this issue.</p>