Resolving dependencies...
Downloading TypeCompose-0.6.6...
Configuring TypeCompose-0.6.6...
Building TypeCompose-0.6.6...
Preprocessing library TypeCompose-0.6.6...
cabal: can't find source for Data/Pair in src, dist/build/autogen
Failed to install TypeCompose-0.6.6
cabal: Error: some packages failed to install:
TypeCompose-0.6.6 failed during the building phase. The exception was:
ExitFailure 1