#956: improving error messages #1 ------------------------------------------------------------+--------------- Reporter: Bulat Ziganshin <Bulat.Ziganshin@…> | Owner: simonpj Type: feature request | Status: new Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ------------------------------------------------------------+--------------- Comment(by morabbin): Given that GHC 7's error messages are generally more informative, and in these cases produce very friendly messages: {{{ Couldn't match expected type `IO b0' with actual type `Char -> IO ()' In a stmt of a 'do' block: putChar In the expression: do { putChar 'a'; putChar } In an equation for `main': main = do { putChar 'a'; putChar } }}} perhaps this ought to be closed as fixed. The message doesn't suggest a probable cause or fix, but I think that's fine here. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/956#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler