Hello, I am working on a thesis project which involves for a large part constructing a gui. In short, I want to create a combinator library that gives (a subset of) functionality, reporting libraries as Crystal reports offer. I read about Yampa and Fruit and wxFruit and both seem a very elegant way to construct a gui.Unfortunately, Fruit uses a rather low-level library which makes it of less use. wxFruit looks very nice, but the library does not seem to be maintained anymore. First, is wxFruit still maintained, or are there any plans to further develop it. Or, can you recommend other libraries/frameworks to construct a gui using combinators, that use higher level libraries such as wxHaskell? (An other possibility would be to use wxHaskell only and construct the combinators entirely myself. This might be the most flexible approach.) Second, I can't get wxFruit to compile on my machine. When I compile I use the following command-line: ghci -fglasgow-exts -package data -package wx -i/users/gjhdieij/dowload/afrp-0.4/src WXFruit.hs The packages than almost loads, but I still get the following errors (GHC 6.4, wxHaskell 0.9.4) . Does anyone know a sollution? /users/gjhdieij/dowload/afrp-0.4/src/AFRPUtilities.hs:169:46: Ambiguous occurrence `>>^' It could refer to either `AFRPUtilities.>>^', defined at /users/gjhdieij/dow load/afrp-0.4/src/AFRPUtilities.hs:106:2 or `Control.Arrow.>>^', imported from AFRP at /users/g jhdieij/dowload/afrp-0.4/src/AFRPUtilities.hs:90:0-10 /users/gjhdieij/dowload/afrp-0.4/src/AFRPUtilities.hs:178:48: Ambiguous occurrence `>>^' It could refer to either `AFRPUtilities.>>^', defined at /users/gjhdieij/dow load/afrp-0.4/src/AFRPUtilities.hs:106:2 or `Control.Arrow.>>^', imported from AFRP at /users/g jhdieij/dowload/afrp-0.4/src/AFRPUtilities.hs:90:0-10 (etc.)