Resolving dependencies... Configuring dlist-0.8.0.2... Configuring stm-2.4.4.1... Building dlist-0.8.0.2... Building stm-2.4.4.1... Installed dlist-0.8.0.2 Configuring symbol-0.2.4... Configuring uglymemo-0.1.0.1... Installed stm-2.4.4.1 Building symbol-0.2.4... Building uglymemo-0.1.0.1... Configuring async-2.1.1... Installed uglymemo-0.1.0.1 Installed symbol-0.2.4 Building async-2.1.1... Installed async-2.1.1 Configuring minisat-0.1.2... Building minisat-0.1.2... Installed minisat-0.1.2 Configuring jukebox-0.2.1... Building jukebox-0.2.1... Failed to install jukebox-0.2.1 Build log ( /home/builder/.cabal/logs/jukebox-0.2.1.log ): cabal: Entering directory '/tmp/cabal-tmp-17642/jukebox-0.2.1' Configuring jukebox-0.2.1... Building jukebox-0.2.1... Preprocessing library jukebox-0.2.1... src/Jukebox/InferTypes.hs:4:0: error: fatal error: errors.h: No such file or directory #include "errors.h" ^ compilation terminated. `gcc' failed in phase `C pre-processor'. (Exit code: 1) cabal: Leaving directory '/tmp/cabal-tmp-17642/jukebox-0.2.1' cabal: Error: some packages failed to install: jukebox-0.2.1 failed during the building phase. The exception was: ExitFailure 1