title: How to resolve issues when getting error: Not in scope
body: <pre>*Main> :t putStrn
  
  &lt;interactive>:1:1:
  Not in scope: `putStrn'
  Perhaps you meant one of these:  
    `putStr' (imported from Prelude),  
    `putStrLn' (imported from Prelude)</pre>
  
  <p>Please note that I am practising haskell programming in emacs with haskell mode.</p>
  
  <p>Even while using terminal, I am getting following error:</p>
  
  <pre>optimight@optimight:~$ ghci  
  GHCi, version 7.4.1: http://www.haskell.org/ghc/  :? for help  
  Loading package ghc-prim ... linking ... done. 
  Loading package integer-gmp ... linking ... done.  
  Loading package base ... linking ... done.  
  Prelude> :set prompt ghci>  
  ghci>:t putStrln   
  
  &lt;interactive>:1:1:  
      Not in scope: `putStrln'  
      Perhaps you meant one of these:  
        `putStrLn' (imported from Prelude),  
        `putStr' (imported from Prelude)</pre>