[GHC] #14053: Runtime linker failed due to a duplicate symbol definition

[GHC]

#14053: Runtime linker failed due to a duplicate symbol definition
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        Reporter:  SwiftsNamesake    |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
  (Linking)                          |             Keywords:  linker,
      Resolution:  invalid           |  windows
Operating System:  Windows           |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by Phyx-):

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


Comment:

 That... is a very long list of dependencies.. The linker is correct in
 complaining. You're loading somehow two different versions of `process` at
 the same time in the same program.

 This would indeed lead to symbols duplication. You need to find out where
 in your project the dependency to `process-1.4.2.0` and `process-1.4.3.0`
 come from.

 My guess is your package configuration is messed up(check `ghc-pkg
 check`). Or a bug I the constraint solver for stack or cabal. But it's not
 a GHC bug, it's correctly rejecting loading a duplicate module.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14053#comment:8>
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