Djinn Doesn't Build

dom@linux-6ofq:~/djinn-2009.2.1> runghc Setup.lhs build Preprocessing executables for djinn-2009.2.1... Building djinn-2009.2.1... [1 of 7] Compiling REPL ( src/REPL.hs, dist/build/djinn/djinn-tmp/REPL.o )

src/REPL.hs:18:17: Ambiguous type variable `e' in the constraint: `Control.Exception.Exception e' arising from a use of `Control.Exception.catch' at src/REPL.hs:(18,17)-(33,12) Probable fix: add a type signature that fixes these type variable(s)

dom@linux-6ofq:~/djinn-2009.2.1> ghc --version The Glorious Glasgow Haskell Compilation System, version 6.10.1