title: Error : Unable to import package 'kivymd.navigationdrawer.NavigationLayout'
body: <p>Hi I have a problem with this simple code i can't import the wanted package</p>
  
  <p>i've tried to copy head codes of some kivy projects but it doesn't work</p>
  
  <pre><code>#:import NavigationLayout kivymd.navigationdrawer.NavigationLayout
  #:import MDSeperator kivymd.card.MDSeperator
  
  
  NavigationLayout:
      MDNavigationDrawer:
       #   drawer_logo: "mercedes.jpg"
  
  
      Button:
          text: "i'm happy, what about you !"
  </code></pre>
  
  <p>this is the error : Unable to import package 'kivymd.navigationdrawer.NavigationLayout'</p>