title: Preventing pop up windows in emacs
body: <p>I very new to emacs and I installed evil-mode and haskell-mode. </p>
  
  <p>The problem that I have is that every time I press 'o' an haskell-mode-hook window pops up and tells me that the variable is nil and I should configure it.</p>
  
  <p>It only appears when I didn't specify an indention mode, but all those indention modes are super strange and I don't want them to be active.</p>
  
  <p>Is there a way that I can prevent those 'pop ups'?</p>