title: 'DataFrame' object has no attribute 'dt'
body: <p>I stuck in this error, I want to subtract two date and get the difference as Days
  I always receive the below  error</p>
  
  <p><a href="https://i.stack.imgur.com/zi2dy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zi2dy.png" alt="enter image description here"></a></p>
  
  <p>here is the dataframe info</p>
  
  <p><a href="https://i.stack.imgur.com/eYE7H.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eYE7H.png" alt="enter image description here"></a></p>