[GHC] #14984: Regression: 8.4.1 says "Could not deduce" when before 8.4 it could

GHC ghc-devs at haskell.org
Fri Mar 30 00:19:30 UTC 2018


#14984: Regression: 8.4.1 says "Could not deduce" when before 8.4 it could
-------------------------------------+-------------------------------------
        Reporter:  erikd             |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.4.1
  checker)                           |
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by erikd):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Sorry, this was my mistake. This was caused by a change in `QuickCheck`
 between `2.9.*` and `2.10.0`

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14984#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list