Hi cafe, I just get a build error on install config-file (which depends on hslogger), C:\Documents and Settings\lenovo>cabal install hslogger Resolving dependencies... Downloading hslogger-1.1.1... Configuring hslogger-1.1.1... Preprocessing library hslogger-1.1.1... Preprocessing executables for hslogger-1.1.1... Building hslogger-1.1.1... src\System\Log\Handler\Rotating.hs:48:7: Could not find module `System.FilePath.Windows': It is a member of the hidden package `filepath-1.1.0.4'. Perhaps you need to add `filepath' to the build-depends in your .cabal fil e. Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: hslogger-1.1.1 failed during the building phase. The exception was: ExitFailure 1 I am using platform-2.0, How can I solve it? Thanks in advance Gang