Resolving dependencies...
Downloading semigroups-0.18.1...
Configuring semigroups-0.18.1...
Building semigroups-0.18.1...
Preprocessing library semigroups-0.18.1...

src-ghc7/Data/Semigroup.hs:157:8:
    Could not find module ‘Data.Tagged’
    There are files missing in the ‘tagged-0.8.3@tagge_5cptKNCoGdxJM6eqqNERxD’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:161:18:
    Could not find module ‘Data.Text’
    There are files missing in the ‘text-1.2.2.0@text_5c7VCmRXJenGcMPs3kwpkI’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:162:18:
    Could not find module ‘Data.Text.Lazy’
    There are files missing in the ‘text-1.2.2.0@text_5c7VCmRXJenGcMPs3kwpkI’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:163:18:
    Could not find module ‘Data.Text.Lazy.Builder’
    There are files missing in the ‘text-1.2.2.0@text_5c7VCmRXJenGcMPs3kwpkI’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:167:8:
    Could not find module ‘Data.Hashable’
    There are files missing in the ‘hashable-1.2.4.0@hasha_8GjadD03dR57AKCJdr90LD’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:171:8:
    Could not find module ‘Data.HashMap.Lazy’
    There are files missing in the ‘unordered-containers-0.2.6.0@unord_KZtAs5BAqzn94LEgyMPvCy’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

src-ghc7/Data/Semigroup.hs:172:8:
    Could not find module ‘Data.HashSet’
    There are files missing in the ‘unordered-containers-0.2.6.0@unord_KZtAs5BAqzn94LEgyMPvCy’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.
Failed to install semigroups-0.18.1
cabal: Error: some packages failed to install:
semigroups-0.18.1 failed during the building phase. The exception was:
ExitFailure 1