I'm trying to write my first Haskell program. The below is the first real logic block I've tried to write, unfortunately I get a "The last statement in a 'do' construct must be an expression" error when loading the method. However, the location of this problem isn't very clear. Is there a way to get more detailed parse message from Haskell, or can someone tell me where the problem is (and better "why"?). I don't think I actually need to use a "do" IO/Monad theme here, but its not clear to me either way. This isn't homework, its just for fun... do_solve_iter guess tried = do let actual = count_occurences guess if guess == actual then putStrLn "ANSWER!!" else if (find (==actual) tried) == Just actual then do putStrLn "NO ANSWER!" putStrLn tried else do putStrLn "ITER" do_solve_iter actual (actual : tried) -- View this message in context: http://old.nabble.com/Parse-do-block-problem-tp26883702p26883702.html Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.