Hello, I have a program that just will not compile and I cannot figure out why. I am starting out with wxHaskell but keep getting certain errors. Here is the source: ------------------------- module Main where import Graphics.UI.WX main :: IO () main = start hello hello :: IO () hello = do f <- frame [text := "Super Window"] lab <- staticText f [text:= "Hello"] quit <- button f [text:= "Quit", on command := close f] touch <- button f [text:= "Touch Me", on command := set quit [text:= "Yay"]] set f [layout:= floatCenter (widget lab) $ floatCenter (widget touch) $ floatCenter (widget quit)] ------------------ I keep the following error **** Compiling Main ( test1.hs, test1.o ) test1.hs:9:11: The last statement in a 'do' construct must be an expression ***** I looked at source code for the do statement and can not understand why I get that error.