title: Uncaught TypeError: Cannot read property 'type' of undefined
body: <p>There is a pivot view in my module.Earlier it works fine.But now when i click on the + sign it shows the error</p>
  
  <p>Uncaught TypeError: Cannot read property 'type' of undefined</p>
  
  <p><a href="https://i.stack.imgur.com/EtEAN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EtEAN.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/EyzEb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EyzEb.png" alt="enter image description here"></a></p>