Resolving dependencies...
Downloading activitystreams-aeson-0.2.0.1...
Configuring activitystreams-aeson-0.2.0.1...
Building activitystreams-aeson-0.2.0.1...
Preprocessing library activitystreams-aeson-0.2.0.1...

Codec/ActivityStream/Schema.hs:90:18:
    Could not find module ‘Data.Aeson.TH’
    There are files missing in the ‘aeson-0.8.0.2’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

Codec/ActivityStream/Schema.hs:92:18:
    Could not find module ‘Data.Aeson’
    There are files missing in the ‘aeson-0.8.0.2’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.
Failed to install activitystreams-aeson-0.2.0.1
cabal: Error: some packages failed to install:
activitystreams-aeson-0.2.0.1 failed during the building phase. The exception
was:
ExitFailure 1