On Sat, 16 Oct 2010 07:23:04 +0200, Andy Elvey
-- A simple csv parser Module parseCSV where import Text.ParserCombinators.Parsec
That's your problem. I'm assuming the newline got chomped up, so your source file reads --A simple csv parser Module parseCSV where That's wrong. Module is *not* to be capitalized, the module *name*, however, *is*. Change it to: module ParseCsv where Runhaskell should be absolutely fine running it that way, no need to remove the module name. GHC (the compiler itself) on the other hand, will just not produce a binary as long as your module name isn't "Main." % runhaskell Test.hs ~ "Hello" % ghc --make -O2 -o Test Test.hs ~ Warning: output was redirected with -o, but no output will be generated because there is no Main module. % cat Test.hs ~ module Test where main = print "Hello" Most programs will typically have a File "Main.hs" which does all the duties of a main executable. Best wishes, Aleks