gistfile1.txt

~/Documents/Code/haskell cabal install ghc-mod-5.2.1.1 -v3
Using a sandbox located at /Users/Alex/Documents/Code/haskell/.cabal-sandbox
Searching for ghc in path.
Found ghc at /usr/local/bin/ghc
("/usr/local/bin/ghc",["--numeric-version"])
/usr/local/bin/ghc is version 7.8.2
looking for tool ghc-pkg near compiler in /usr/local/bin
found ghc-pkg in /usr/local/bin/ghc-pkg
("/usr/local/bin/ghc-pkg",["--version"])
/usr/local/bin/ghc-pkg is version 7.8.2
("/usr/local/bin/ghc",["--supported-languages"])
("/usr/local/bin/ghc",["--info"])
The package database already exists:
/Users/Alex/Documents/Code/haskell/.cabal-sandbox/x86_64-osx-ghc-7.8.2-packages.conf.d
Reading available packages...
Reading available packages...
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--package-db=/Users/Alex/Documents/Code/haskell/.cabal-sandbox/x86_64-osx-ghc-7.8.2-packages.conf.d","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Found no modified add-source deps.
Reading installed packages...
("/usr/local/bin/ghc-pkg",["dump","--global","-v0"])
("/usr/local/bin/ghc-pkg",["dump","--package-db=/Users/Alex/Documents/Code/haskell/.cabal-sandbox/x86_64-osx-ghc-7.8.2-packages.conf.d","-v0"])
("/usr/local/bin/ghc",["--print-libdir"])
Reading available packages...
Choosing modular solver.
Resolving dependencies...
[__0] trying: HTTP-4000.2.18/installed-88c... (user goal)
[__1] trying: base-4.7.0.0/installed-a33... (dependency of HTTP-4000.2.18/installed-88c...)
[__2] trying: rts-1.0/installedbuil... (dependency of base-4.7.0.0/installed-a33...)
[__3] trying: integer-gmp-0.5.1.0/installed-dc4... (dependency of base-4.7.0.0/installed-a33...)
[__4] trying: ghc-prim-0.3.1.0/installed-948... (dependency of base-4.7.0.0/installed-a33...)
[__5] trying: parsec-3.1.7/installed-677... (dependency of HTTP-4000.2.18/installed-88c...)
[__6] trying: text-1.2.0.0/installed-5ae... (dependency of parsec-3.1.7/installed-677...)
[__7] trying: deepseq-1.3.0.2/installed-87c... (dependency of text-1.2.0.0/installed-5ae...)
[__8] trying: old-time-1.1.0.2/installed-fa6... (dependency of HTTP-4000.2.18/installed-88c...)
[__9] trying: old-locale-1.0.0.6/installed-be1... (dependency of old-time-1.1.0.2/installed-fa6...)
[_10] trying: mtl-2.1.3.1/installed-89e... (dependency of HTTP-4000.2.18/installed-88c...)
[_11] trying: transformers-0.3.0.0/installed-7df... (dependency of mtl-2.1.3.1/installed-89e...)
[_12] trying: bytestring-0.10.4.0/installed-bb0... (dependency of HTTP-4000.2.18/installed-88c...)
[_13] trying: array-0.5.0.0/installed-9f2... (dependency of HTTP-4000.2.18/installed-88c...)
[_14] next goal: network (user goal)
[_14] rejecting: network-2.6.0.2/installed-32e... (conflict: HTTP => network==2.5.0.0/installed-691...)
[_14] trying: network-2.5.0.0/installed-691...
[_15] trying: unix-2.7.0.1/installed-01f... (dependency of network-2.5.0.0/installed-691...)
[_16] trying: time-1.4.2/installed-a20... (dependency of unix-2.7.0.1/installed-01f...)
[_17] trying: random-1.1/installed-acc... (user goal)
[_18] trying: ghc-mod-5.2.1.1 (user goal)
[_19] trying: ghc-mod-5.2.1.1:!test
[_20] trying: data-default-0.5.3 (dependency of ghc-mod-5.2.1.1)
[_21] trying: data-default-instances-old-locale-0.0.1 (dependency of data-default-0.5.3)
[_22] trying: data-default-instances-dlist-0.0.1 (dependency of data-default-0.5.3)
[_23] trying: dlist-0.7.1/installed-47e... (dependency of data-default-instances-dlist-0.0.1)
[_24] trying: data-default-instances-containers-0.0.1 (dependency of data-default-0.5.3)
[_25] trying: data-default-instances-base-0.0.1 (dependency of data-default-0.5.3)
[_26] trying: data-default-class-0.0.1 (dependency of data-default-0.5.3)
[_27] trying: async-2.0.1.6/installed-fb7... (dependency of ghc-mod-5.2.1.1)
[_28] trying: stm-2.4.3/installed-613... (dependency of async-2.0.1.6/installed-fb7...)
[_29] trying: Cabal-1.20.0.2/installed-ddd... (dependency of ghc-mod-5.2.1.1)
[_30] trying: djinn-ghc-0.0.2.2 (dependency of ghc-mod-5.2.1.1)
[_31] trying: djinn-lib-0.0.1.2/installed-459... (dependency of djinn-ghc-0.0.2.2)
[_32] trying: haskell-src-exts-1.16.0/installed-701... (dependency of ghc-mod-5.2.1.1)
[_33] trying: cpphs-1.18.5/installed-dc0... (dependency of haskell-src-exts-1.16.0/installed-701...)
[_34] trying: polyparse-1.9/installed-ce7... (dependency of cpphs-1.18.5/installed-dc0...)
[_35] trying: split-0.2.2/installed-3f1... (dependency of ghc-mod-5.2.1.1)
[_36] trying: monad-control-0.3.3.0/installed-33f... (dependency of ghc-mod-5.2.1.1)
[_37] trying: transformers-base-0.4.3/installed-ab7... (dependency of ghc-mod-5.2.1.1)
[_38] trying: temporary-1.2.0.3 (dependency of ghc-mod-5.2.1.1)
[_39] trying: exceptions-0.6.1/installed-6f8... (dependency of temporary-1.2.0.3)
[_40] trying: syb-0.4.2/installed-e8e... (dependency of ghc-mod-5.2.1.1)
[_41] trying: process-1.2.0.0/installed-58d... (dependency of ghc-mod-5.2.1.1)
[_42] trying: pretty-1.1.1.1/installed-947... (dependency of ghc-mod-5.2.1.1)
[_43] trying: monad-journal-0.5.0.1 (dependency of ghc-mod-5.2.1.1)
[_44] trying: either-4.3.2 (dependency of monad-journal-0.5.0.1)
[_45] trying: semigroupoids-4.2/installed-019... (dependency of either-4.3.2)
[_46] trying: distributive-0.4.4/installed-852... (dependency of semigroupoids-4.2/installed-019...)
[_47] trying: transformers-compat-0.3.3.4/installed-678... (dependency of distributive-0.4.4/installed-852...)
[_48] trying: tagged-0.7.2/installed-570... (dependency of distributive-0.4.4/installed-852...)
[_49] trying: contravariant-1.2/installed-168... (dependency of semigroupoids-4.2/installed-019...)
[_50] trying: void-0.6.1/installed-3f0... (dependency of contravariant-1.2/installed-168...)
[_51] trying: hashable-1.2.2.0/installed-ed4... (dependency of void-0.6.1/installed-3f0...)
[_52] trying: comonad-4.2.2/installed-455... (dependency of semigroupoids-4.2/installed-019...)
[_53] trying: semigroups-0.15.3/installed-fc5... (dependency of either-4.3.2)
[_54] trying: unordered-containers-0.2.5.0/installed-147... (dependency of semigroups-0.15.3/installed-fc5...)
[_55] trying: nats-0.2/installed-456... (dependency of semigroups-0.15.3/installed-fc5...)
[_56] trying: profunctors-4.2.0.1/installed-791... (dependency of either-4.3.2)
[_57] trying: MonadRandom-0.3/installed-c1c... (dependency of either-4.3.2)
[_58] trying: free-4.10.0.1 (dependency of either-4.3.2)
[_59] trying: template-haskell-2.9.0.0/installed-8cd... (dependency of free-4.10.0.1)
[_60] trying: prelude-extras-0.4/installed-2a9... (dependency of free-4.10.0.1)
[_61] trying: bifunctors-4.1.1.1/installed-a0f... (dependency of either-4.3.2)
[_62] trying: io-choice-0.0.5 (dependency of ghc-mod-5.2.1.1)
[_63] trying: io-choice-0.0.5:!test
[_64] trying: lifted-base-0.2.3.0/installed-77a... (dependency of io-choice-0.0.5)
[_65] trying: hlint-1.9.13 (dependency of ghc-mod-5.2.1.1)
[_66] trying: extra-1.0 (dependency of hlint-1.9.13)
[_67] trying: extra-1.0:!test
[_68] next goal: ansi-terminal (dependency of hlint-1.9.13)
[_68] rejecting: ansi-terminal-0.6.1.1/installed-e69... (conflict: hlint => ansi-terminal>=0.6.2)
[_68] trying: ansi-terminal-0.6.2.1
[_69] trying: uniplate-1.6.12/installed-d44... (dependency of hlint-1.9.13)
[_70] trying: cmdargs-0.10.10/installed-603... (dependency of hlint-1.9.13)
[_71] trying: ghc-syb-utils-0.2.2 (dependency of ghc-mod-5.2.1.1)
[_72] trying: ghc-paths-0.1.0.9/installed-343... (dependency of ghc-mod-5.2.1.1)
[_73] next goal: ghc (dependency of ghc-mod-5.2.1.1)
[_73] fail (unknown package: ghc)
[_19] fail (backjumping, conflict set: ghc, ghc-mod)
[_18] rejecting: ghc-mod-5.2.1.0, 5.2.0.0, 5.1.1.0, 5.1.0.2, 5.1.0.1, 5.1.0.0, 5.0.1.2, 5.0.1.1, 5.0.1, 5.0.0, 4.1.6, 4.1.5, 4.1.4, 4.1.3, 4.1.2, 4.1.1, 4.1.0, 4.0.2, 4.0.1, 4.0.0, 3.1.7, 3.1.6, 3.1.5, 3.1.4, 3.1.3, 3.1.2, 3.1.1, 3.1.0, 3.0.2, 3.0.1, 3.0.0, 2.1.2, 2.1.1, 2.1.0, 2.0.3, 2.0.2, 2.0.1, 2.0.0, 1.12.5, 1.12.4, 1.12.3, 1.12.2, 1.12.1, 1.12.0, 1.11.5, 1.11.4, 1.11.3, 1.11.2, 1.11.1, 1.11.0, 1.10.18, 1.10.17, 1.10.16, 1.10.15, 1.10.14, 1.10.13, 1.10.12, 1.10.11, 1.10.10, 1.10.9, 1.10.8, 1.10.7, 1.10.6, 1.10.5, 1.10.4, 1.10.3, 1.10.2, 1.10.1, 1.10.0, 1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0, 0.6.2, 0.6.1, 0.6.0, 0.5.5, 0.5.4, 0.5.3, 0.5.2, 0.5.1, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0, 0.3.0, 0.2.0, 0.1.0 (global constraint requires ==5.2.1.1)
[__0] fail (backjumping, conflict set: ghc, ghc-mod)
cabal: Could not resolve dependencies:
trying: ghc-mod-5.2.1.1 (user goal)
next goal: ghc (dependency of ghc-mod-5.2.1.1)
Dependency tree exhaustively searched.

Note: when using a sandbox, all packages are required to have consistent
dependencies. Try reinstalling/unregistering the offending packages or
recreating the sandbox.
~/Documents/Code/haskell

Hi. I'm getting this now. Did you ever resolve this?