Resolving dependencies... Configuring cereal-0.5.1.0... [2 of 3] Compiling Data.Hashable.Generic ( Data/Hashable/Generic.hs, dist/build/Data/Hashable/Generic.o ) Data/Hashable/Generic.hs:20:1: Warning: The import of ‘Bits’ from module ‘Data.Bits’ is redundant [3 of 3] Compiling Data.Hashable ( Data/Hashable.hs, dist/build/Data/Hashable.o ) : cannot satisfy -package-id text-1.2.1.3-4d5a85ef41c32933350e76063fc69929 (use -v for more information) Failed to install hashable-1.2.3.3 Configuring exceptions-0.8.0.2... cabal: The following package dependencies were requested --dependency='transformers-compat=transformers-compat-0.4.0.4-3ca5cbcec233c17da785d5f27705643c' --dependency='stm=stm-2.4.4-70007269a30de6ec60a981b188ba0f29' --dependency='mtl=mtl-2.2.1-bfb998dc8c11466235d862ade6fe90ac' however the given installed package instance does not exist. Failed to install exceptions-0.8.0.2 cabal: Error: some packages failed to install: aeson-0.10.0.0 depends on hashable-1.2.3.3 which failed to install. async-2.0.2 failed during the configure step. The exception was: ExitFailure 1 attoparsec-0.13.0.1 depends on hashable-1.2.3.3 which failed to install. crypto-api-0.13.2 failed during the configure step. The exception was: ExitFailure 1 exceptions-0.8.0.2 failed during the configure step. The exception was: ExitFailure 1 hashable-1.2.3.3 failed during the building phase. The exception was: ExitFailure 1 hpc-coveralls-1.0.3 depends on exceptions-0.8.0.2 which failed to install. pureMD5-2.1.2.1 depends on crypto-api-0.13.2 which failed to install. regex-base-0.93.2 failed during the configure step. The exception was: ExitFailure 1 regex-posix-0.95.2 depends on regex-base-0.93.2 which failed to install. retry-0.7.0.1 depends on exceptions-0.8.0.2 which failed to install. scientific-0.3.4.4 depends on hashable-1.2.3.3 which failed to install. unordered-containers-0.2.5.1 depends on hashable-1.2.3.3 which failed to install.