title: I still cannot install wagtail==2.7
body: <p>This is Mark again.  I cannot for the life of me figure out how to install wagtail==2.7.</p>
  <p>Here is a screenshot of my dos termninal when I try to install wagtail==2.7
  Can anybody make sense of what this error message is.</p>
  <p>Thanks,
  Mark</p>
  <p><a href="https://i.stack.imgur.com/FakYq.png" rel="nofollow noreferrer">
  wagtail install text from terminal
  </a></p>