[Haddock] [haddock] #183: "failed to parse haddock prologue from file" error on module

haddock haddock at projects.haskell.org
Fri Oct 21 00:13:40 BST 2011

#183: "failed to parse haddock prologue from file" error on module
Reporter:  jberryman  |       Owner:        
    Type:  defect     |      Status:  new   
Priority:  major      |   Milestone:  2.10.0
 Version:  2.9.2      |    Keywords:        
 I've attached the project-in-progress that gives me this error (please
 ignore the ugly code therein). I tried removing some of the blocks of
 comments to see if any of them were causing a parse error, but without

 » cabal configure && cabal haddock
 1 ↵
 Resolving dependencies...
 Configuring pez-0.1.0...
 Running Haddock for pez-0.1.0...
 Preprocessing library pez-0.1.0...
 Warning: The documentation for the following packages are not installed.
 links will be generated to these packages: rts-1.0, fclabels-1.0.4
 Warning: Cannot read
    Interface file is of wrong version:
 Skipping this interface.
 haddock coverage for dist/build/tmp16310/Data/Label/Zipper.hs:   28/30
 Warning: Data.Label.Zipper: could not find link destinations for:
     Data.Label.Abstract.Lens Data.Label.Maybe.:~>
 haddock: failed to parse haddock prologue from file: dist/doc/html/pez

 I am able to build documentation for some other modules on my disk, but
 this one craps out on me.

 » whereis haddock
 haddock: /usr/bin/haddock /usr/share/man/man1/haddock.1.gz
 » whereis cabal
 cabal: /usr/bin/cabal
 » cabal --version
 cabal-install version 0.10.2
 using version of the Cabal library
 » haddock --version
 Haddock version 2.9.2, (c) Simon Marlow 2006
 Ported to use the GHC API by David Waern 2006-2008

 sorry to dump my whole project on you all, but I can't seem to get any
 helpful debugging messages or track down the source of the error.

Ticket URL: <http://trac.haskell.org/haddock/ticket/183>
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