[Hackage] #694: mention --constraint flag in error essage when dep planning fails

[Hackage]

#694: mention --constraint flag in error essage when dep planning fails
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  Reporter:  duncan              |        Owner:                    
      Type:  enhancement         |       Status:  new               
  Priority:  normal              |    Milestone:  cabal-install-0.16
 Component:  cabal-install tool  |      Version:                    
  Severity:  normal              |     Keywords:                    
Difficulty:  unknown             |   Ghcversion:                    
  Platform:                      |  
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Changes (by kosmikus):

  * difficulty:  easy (<4 hours) => unknown
  * milestone:  cabal-install-0.14 => cabal-install-0.16


Comment:

 Unclear what to do here (if anything).

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/694#comment:2>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects