Resolving dependencies... Configuring base-orphans-0.7... Configuring bv-0.5... Building base-orphans-0.7... Building bv-0.5... Installed base-orphans-0.7 Configuring multiset-0.3.4... Building multiset-0.3.4... Installed bv-0.5 Configuring random-strings-0.1.1.0... Building random-strings-0.1.1.0... Installed multiset-0.3.4 Configuring regex-applicative-0.3.3... Installed random-strings-0.1.1.0 Configuring TypeCompose-0.9.12... Building regex-applicative-0.3.3... Building TypeCompose-0.9.12... Installed regex-applicative-0.3.3 Configuring funcons-values-0.1.0.2... Building funcons-values-0.1.0.2... Installed TypeCompose-0.9.12 Configuring gll-0.4.0.5... Building gll-0.4.0.5... Installed funcons-values-0.1.0.2 Installed gll-0.4.0.5 Configuring funcons-tools-0.2.0.1... Building funcons-tools-0.2.0.1... Installed funcons-tools-0.2.0.1 Configuring funcons-lambda-cbv-mp-0.1.0.0... Building funcons-lambda-cbv-mp-0.1.0.0... Failed to install funcons-lambda-cbv-mp-0.1.0.0 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/funcons-lambda-cbv-mp-0.1.0.0-D0c4DqC4cl5BOfhABEHEVq.log ): cabal: Entering directory '/tmp/cabal-tmp-27389/funcons-lambda-cbv-mp-0.1.0.0' Configuring funcons-lambda-cbv-mp-0.1.0.0... Preprocessing executable 'lambda-cbv' for funcons-lambda-cbv-mp-0.1.0.0.. Building executable 'lambda-cbv' for funcons-lambda-cbv-mp-0.1.0.0.. [1 of 2] Compiling LambdaCBV.Parser ( src/LambdaCBV/Parser.hs, dist/build/lambda-cbv/lambda-cbv-tmp/LambdaCBV/Parser.o ) src/LambdaCBV/Parser.hs:117:11: error: • Variable not in scope: first_ :: [Funcons] -> t • Perhaps you meant one of these: ‘fst_’ (line 117), ‘list_’ (imported from Funcons.EDSL), ‘list_’ (imported from Funcons.Core) | 117 | fst_ xs = first_ [tuple_elements_ xs] | ^^^^^^ src/LambdaCBV/Parser.hs:118:11: error: • Variable not in scope: second_ :: [Funcons] -> t • Perhaps you meant ‘record_’ (imported from Funcons.Core) | 118 | snd_ xs = second_ [tuple_elements_ xs] | ^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-27389/funcons-lambda-cbv-mp-0.1.0.0' cabal: Error: some packages failed to install: funcons-lambda-cbv-mp-0.1.0.0-D0c4DqC4cl5BOfhABEHEVq failed during the building phase. The exception was: ExitFailure 1