Resolving dependencies...
Configuring network-2.6.3.1...
Configuring text-1.2.2.1...
Building text-1.2.2.1...
Building network-2.6.3.1...
Installed network-2.6.3.1
Installed text-1.2.2.1
Configuring heroku-0.1.1...
Building heroku-0.1.1...
Failed to install heroku-0.1.1
Build log ( /home/builder/.cabal/logs/heroku-0.1.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-18579/heroku-0.1.1'
Configuring heroku-0.1.1...
Building heroku-0.1.1...
Preprocessing library heroku-0.1.1...
[1 of 3] Compiling Web.Heroku.Postgres ( Web/Heroku/Postgres.hs, dist/build/Web/Heroku/Postgres.o )

Web/Heroku/Postgres.hs:7:1: error:
    Failed to load interface for ‘Web.Heroku.Internal’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-18579/heroku-0.1.1'
cabal: Error: some packages failed to install:
heroku-0.1.1 failed during the building phase. The exception was:
ExitFailure 1