Resolving dependencies... Configuring dlist-0.8.0.2... Configuring base-compat-0.9.1... Building base-compat-0.9.1... Building dlist-0.8.0.2... Installed dlist-0.8.0.2 Configuring primitive-0.6.1.0... Configuring mtl-2.2.1... Installed base-compat-0.9.1 Building primitive-0.6.1.0... Building mtl-2.2.1... Configuring stm-2.4.4.1... Installed mtl-2.2.1 Configuring semigroups-0.18.2... Installed primitive-0.6.1.0 Building stm-2.4.4.1... Building semigroups-0.18.2... Configuring syb-0.6... Installed semigroups-0.18.2 Building syb-0.6... Configuring time-locale-compat-0.1.1.3... Installed stm-2.4.4.1 Building time-locale-compat-0.1.1.3... Configuring text-1.2.2.1... Installed time-locale-compat-0.1.1.3 Building text-1.2.2.1... Configuring transformers-compat-0.5.1.4... Installed syb-0.6 Building transformers-compat-0.5.1.4... Configuring utf8-string-1.0.1.1... Installed transformers-compat-0.5.1.4 Building utf8-string-1.0.1.1... Installed utf8-string-1.0.1.1 Configuring vector-0.11.0.0... Building vector-0.11.0.0... Configuring mmorph-1.0.9... Installed text-1.2.2.1 Building mmorph-1.0.9... Configuring exceptions-0.8.3... Installed mmorph-1.0.9 Building exceptions-0.8.3... Configuring transformers-base-0.4.4... Installed exceptions-0.8.3 Building transformers-base-0.4.4... Configuring tagged-0.8.5... Installed transformers-base-0.4.4 Building tagged-0.8.5... Installed tagged-0.8.5 Configuring parsec-3.1.11... Building parsec-3.1.11... Configuring hashable-1.2.4.0... Installed vector-0.11.0.0 Building hashable-1.2.4.0... Configuring monad-control-1.0.1.0... Installed parsec-3.1.11 Installed hashable-1.2.4.0 Configuring json-0.9.1... Building monad-control-1.0.1.0... Building json-0.9.1... Configuring scientific-0.3.4.9... Installed monad-control-1.0.1.0 Building scientific-0.3.4.9... Configuring unordered-containers-0.2.7.2... Installed json-0.9.1 Building unordered-containers-0.2.7.2... Installed scientific-0.3.4.9 Configuring lifted-base-0.2.3.8... Building lifted-base-0.2.3.8... Configuring attoparsec-0.13.1.0... Installed lifted-base-0.2.3.8 Building attoparsec-0.13.1.0... Installed unordered-containers-0.2.7.2 Configuring resourcet-1.1.9... Building resourcet-1.1.9... Configuring enclosed-exceptions-1.0.2... Installed attoparsec-0.13.1.0 Installed resourcet-1.1.9 Configuring aeson-1.0.2.1... Building enclosed-exceptions-1.0.2... Building aeson-1.0.2.1... Configuring conduit-1.2.8... Installed enclosed-exceptions-1.0.2 Building conduit-1.2.8... Installed conduit-1.2.8 Installed aeson-1.0.2.1 Configuring yaml-0.8.21.1... Building yaml-0.8.21.1... Installed yaml-0.8.21.1 Configuring json2yaml-0.2.1... Building json2yaml-0.2.1... Failed to install json2yaml-0.2.1 Build log ( /home/builder/.cabal/logs/json2yaml-0.2.1.log ): cabal: Entering directory '/tmp/cabal-tmp-13521/json2yaml-0.2.1' Configuring json2yaml-0.2.1... Building json2yaml-0.2.1... Preprocessing executable 'json2yaml' for json2yaml-0.2.1... [1 of 1] Compiling Main ( json2yaml.hs, dist/build/json2yaml/json2yaml-tmp/Main.o ) json2yaml.hs:2:1: error: Failed to load interface for ‘Text.Yaml’ Use -v to see a list of the files searched for. json2yaml.hs:4:1: error: Failed to load interface for ‘System.IO.UTF8’ Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-13521/json2yaml-0.2.1' cabal: Error: some packages failed to install: json2yaml-0.2.1 failed during the building phase. The exception was: ExitFailure 1