Resolving dependencies...
Starting     composition-prelude-3.0.0.1
Failed to install composition-prelude-3.0.0.1
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/composition-prelude-3.0.0.1-LiE1pDwtIlZ8y13Fz48TWN.log ):
cabal: Entering directory '/tmp/cabal-tmp-30124/composition-prelude-3.0.0.1'
Configuring composition-prelude-3.0.0.1...
cabal: The program 'cpphs' is required but it could not be found.

cabal: Leaving directory '/tmp/cabal-tmp-30124/composition-prelude-3.0.0.1'
cabal: Error: some packages failed to install:
composition-prelude-3.0.0.1-LiE1pDwtIlZ8y13Fz48TWN failed during the configure
step. The exception was:
ExitFailure 1