[Haskell-cafe] ghc-pkg list says a package is installed, but ghci won't load its exposed module (HDBC-ODBC)

[Andreas Marth]

I didn't see an answer jet so here it goes:
If you look closely you will see that HDBC-odbc-1.1.6.2 is installed but
module Database.HDBC.ODBC is not found (loaded). The problem lies in the capitalisation.
I ran into the same problem with missingH and the package filepath wich registers as filepath-1.0 while missingH.cabal is
looking for FilePath.

Hope that helps and gets attention by packege developers in the future.

Kind regards,
Andreas

  ----- Original Message ----- 
  From: Thomas Hartman 
  To: haskell-cafe at haskell.org 
  Sent: Wednesday, June 13, 2007 10:31 PM
  Subject: [Haskell-cafe] ghc-pkg list says a package is installed, but ghci won't load its exposed module (HDBC-ODBC)



  ghc-pkg list says a package is installed, but ghci won't load its 
  module (HDBC-ODBC) 
  Any advice? 

  hartthoma at dbnycws28816 ~/haskellInstalls/HDBC-odbc-1.0.1.0 
  $ ghc-pkg list 
  c:/ghc/ghc-6.6.1\package.conf: 
      Cabal-1.1.6.2, GLUT-2.1.1, HAppS-0.8.4, HDBC-1.0.1, 
      HDBC-odbc-1.0.1.0, HUnit-1.1.1, HaXml-1.13.2, OpenGL-2.2.1, 
      QuickCheck-1.0.1, Win32-2.1.1, base-2.1.1, cgi-3001.1.1, 
  fgl-5.4.1, 
      filepath-1.0, (ghc-6.6.1), haskell-src-1.0.1, haskell98-1.0, 
      html-1.0.1, mtl-1.0.1, network-2.0.1, parsec-2.0, regex-base-0.72, 
      regex-base-0.91, regex-compat-0.71, regex-posix-0.71, 
      regex-tdfa-0.92, rts-1.0, stm-2.0, template-haskell-2.1, 
      time-1.1.1, xhtml-3000.0.2 

  ..... 

  Prelude> :m + Database.HDBC.ODBC 
  module main:Database.HDBC.ODBC is not loaded 

  ..... 

  $ ghc-pkg.exe describe HDBC-odbc 
  name: HDBC-odbc 
  version: 1.0.1.0 
  license: LGPL 
  copyright: Copyright (c) 2005-2006 John Goerzen 
  maintainer: John Goerzen <jgoer... at complete.org> 
  stability: Alpha 
  homepage: 
  package-url: 
  description: 
  category: 
  author: 
  exposed: True 
  exposed-modules: Database.HDBC.ODBC 
  hidden-modules: Database.HDBC.ODBC.Connection 
                  Database.HDBC.ODBC.Statement Database.HDBC.ODBC.Types 
                  Database.HDBC.ODBC.Utils Database.HDBC.ODBC.TypeConv 
  import-dirs: "C:\\Program Files\\Haskell\\HDBC-odbc-1.0.1.0\ 
  \ghc-6.6.1" 
  library-dirs: "C:\\Program Files\\Haskell\\HDBC-odbc-1.0.1.0\ 
  \ghc-6.6.1" 
  hs-libraries: HSHDBC-odbc-1.0.1.0 
  extra-libraries: odbc32 
  extra-ghci-libraries: 
  include-dirs: "C:\\Program Files\\Haskell\\HDBC-odbc-1.0.1.0\ 
  \ghc-6.6.1\\include 
  " 
  includes: 
  depends: base-2.1.1 mtl-1.0.1 HDBC-1.0.1 parsec-2.0 
  hugs-options: 
  cc-options: 
  ld-options: 
  framework-dirs: 
  frameworks: 
  haddock-interfaces: "C:\\Program Files\\Common Files\\HDBC- 
  odbc-1.0.1.0\\doc\\ht 
  ml\\HDBC-odbc.haddock" 
  haddock-html: "C:\\Program Files\\Common Files\\HDBC-odbc-1.0.1.0\\doc\ 
  \html" 
  ---

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