Hi I had wxHaskell working but since I installed the gtk2hs, which updated some packages I’m having some trouble. I’ve installed wxWidgets and wxHaskell again following the instructions in it’s webpage. When I compile a simple wxHaskell program* I get this error: dyld: Symbol not found: _wxTheAssertHandler Referenced from: /Users/miguelnegrao/Library/Haskell/ghc-7.0.4/lib/wxc-0.90.0.3/lib/libwxc.dylib Expected in: /usr/local/lib/libwx_baseu-2.9.3.0.0.dylib in /Users/miguelnegrao/Library/Haskell/ghc-7.0.4/lib/wxc-0.90.0.3/lib/libwxc.dylib Trace/BPT trap: 5 How can I fix this ? thank you, Miguel Negrão I’m on OSX 10.7.3 haskell platform with ghc 7.0.4 brew info wxmac wxmac 2.8.12 http://www.wxwidgets.org /usr/local/Cellar/wxmac/2.9.3.1 (764 files, 26M) * Installed with: --devel https://github.com/mxcl/homebrew/commits/master/Library/Formula/wxmac.rb cabal info wx * wx (library) Synopsis: wxHaskell Versions available: 0.11.1.0, 0.11.1.2, 0.12.1.4, 0.12.1.5, 0.12.1.6, 0.13.2, 0.13.2.1, 0.90, 0.90.0.1 (and 10 others) Versions installed: 0.13.1, 0.90 Program : module Main where import Graphics.UI.WX main :: IO() main = start gui gui :: IO() gui = do f <- frame [text := "window"] txt <- staticText f [text:= "test 123"] but <- button f [text:="button", on command:=set txt [text:="clicked"]] check <- checkBox f [text:="test"] rbox <- radioBox f Vertical ["hello","wold"] [] set f [layout:= boxed "all" (row 0 [ column 0 [widget check, widget rbox], boxed "second2" $ column 0 [widget txt, widget but] ]) ] return ()