I am having a problem compiling my code. Usually I run it with ghci -package data -fglashow-exts Main.hs Main declares a main function and imports all my other files. when I try to ghc it to compile I get that it can't find an interface file for each file in my project. How do I compile something? Also it can't find an interface for Data. How do I make an interface file for that? Thanks, -mike