Resolving dependencies... Configuring timeless-0.8.0.2... Building timeless-0.8.0.2... Preprocessing library timeless-0.8.0.2... src/FRP/Timeless/Tutorial.lhs line 1: unlit: Program line next to comment src/FRP/Timeless/Tutorial.lhs line 3: unlit: Program line next to comment Failed to install timeless-0.8.0.2 cabal: Error: some packages failed to install: timeless-0.8.0.2 failed during the building phase. The exception was: ExitFailure 1