Resolving dependencies... Starting StateVar-1.2.1 Starting appar-0.1.8 Starting SHA-1.6.4.4 Starting auto-update-0.1.6 Building StateVar-1.2.1 Building appar-0.1.8 Building auto-update-0.1.6 Building SHA-1.6.4.4 Completed StateVar-1.2.1 Starting base-compat-0.11.2 Completed appar-0.1.8 Starting base-orphans-0.8.4 Completed auto-update-0.1.6 Starting base64-bytestring-1.2.0.1 Building base-compat-0.11.2 Building base-orphans-0.8.4 Building base64-bytestring-1.2.0.1 Completed base64-bytestring-1.2.0.1 Starting basement-0.0.12 Building basement-0.0.12 Completed base-orphans-0.8.4 Starting blaze-builder-0.4.2.1 Completed SHA-1.6.4.4 Starting bsb-http-chunked-0.0.0.4 Building blaze-builder-0.4.2.1 Completed base-compat-0.11.2 Starting byteorder-1.0.4 Building bsb-http-chunked-0.0.0.4 Building byteorder-1.0.4 Completed bsb-http-chunked-0.0.0.4 Starting bytestring-builder-0.10.8.2.0 Completed byteorder-1.0.4 Starting cabal-doctest-1.0.8 Building bytestring-builder-0.10.8.2.0 Building cabal-doctest-1.0.8 Completed bytestring-builder-0.10.8.2.0 Starting call-stack-0.4.0 Building call-stack-0.4.0 Completed blaze-builder-0.4.2.1 Starting clock-0.8.2 Building clock-0.8.2 Completed call-stack-0.4.0 Starting colour-2.3.5 Building colour-2.3.5 Completed cabal-doctest-1.0.8 Starting data-default-class-0.1.2.0 Building data-default-class-0.1.2.0 Completed clock-0.8.2 Starting dlist-1.0 Building dlist-1.0 Completed data-default-class-0.1.2.0 Starting easy-file-0.2.2 Building easy-file-0.2.2 Completed easy-file-0.2.2 Starting emojis-0.1 Completed dlist-1.0 Starting entropy-0.4.1.6 Building emojis-0.1 Completed colour-2.3.5 Starting file-embed-0.0.14.0 Building file-embed-0.0.14.0 Building entropy-0.4.1.6 Completed file-embed-0.0.14.0 Starting hashable-1.3.2.0 Building hashable-1.3.2.0 Completed entropy-0.4.1.6 Starting hourglass-0.2.12 Building hourglass-0.2.12 Completed hashable-1.3.2.0 Starting hsyslog-5.0.2 Building hsyslog-5.0.2 Completed emojis-0.1 Starting indexed-traversable-0.1.1 Building indexed-traversable-0.1.1 Completed hsyslog-5.0.2 Starting integer-logarithms-1.0.3.1 Building integer-logarithms-1.0.3.1 Completed integer-logarithms-1.0.3.1 Starting mime-types-0.1.0.9 Building mime-types-0.1.0.9 Completed hourglass-0.2.12 Starting monad-loops-0.4.3 Completed indexed-traversable-0.1.1 Starting network-3.1.2.1 Building monad-loops-0.4.3 Completed monad-loops-0.4.3 Starting network-byte-order-0.1.6 Building network-byte-order-0.1.6 Building network-3.1.2.1 Completed mime-types-0.1.0.9 Starting old-locale-1.0.0.7 Building old-locale-1.0.0.7 Completed network-byte-order-0.1.6 Starting parser-combinators-1.3.0 Building parser-combinators-1.3.0 Completed old-locale-1.0.0.7 Starting primitive-0.7.1.0 Building primitive-0.7.1.0 Completed parser-combinators-1.3.0 Starting safe-exceptions-0.1.7.1 Building safe-exceptions-0.1.7.1 Completed basement-0.0.12 Starting semigroups-0.19.1 Building semigroups-0.19.1 Completed safe-exceptions-0.1.7.1 Starting split-0.2.3.4 Building split-0.2.3.4 Completed semigroups-0.19.1 Starting splitmix-0.1.0.3 Building splitmix-0.1.0.3 Completed network-3.1.2.1 Starting stm-chans-3.0.0.4 Completed split-0.2.3.4 Starting syb-0.7.2.1 Building syb-0.7.2.1 Completed splitmix-0.1.0.3 Starting tagged-0.8.6.1 Building tagged-0.8.6.1 Building stm-chans-3.0.0.4 Completed syb-0.7.2.1 Starting th-abstraction-0.4.2.0 Building th-abstraction-0.4.2.0 Completed stm-chans-3.0.0.4 Starting th-compat-0.1.2 Completed tagged-0.8.6.1 Starting transformers-compat-0.6.6 Building th-compat-0.1.2 Building transformers-compat-0.6.6 Completed primitive-0.7.1.0 Starting type-equality-1 Building type-equality-1 Completed type-equality-1 Starting unicode-transforms-0.3.7.1 Completed th-compat-0.1.2 Starting unix-compat-0.5.3 Building unicode-transforms-0.3.7.1 Building unix-compat-0.5.3 Completed transformers-compat-0.6.6 Starting unliftio-core-0.2.0.1 Building unliftio-core-0.2.0.1 Completed th-abstraction-0.4.2.0 Starting word8-0.1.3 Completed unix-compat-0.5.3 Starting zlib-0.6.2.3 Building word8-0.1.3 Completed unliftio-core-0.2.0.1 Starting contravariant-1.5.3 Building zlib-0.6.2.3 Building contravariant-1.5.3 Completed word8-0.1.3 Starting time-manager-0.0.0 Building time-manager-0.0.0 Completed time-manager-0.0.0 Starting base-compat-batteries-0.11.2 Completed contravariant-1.5.3 Starting blaze-markup-0.8.2.8 Building base-compat-batteries-0.11.2 Building blaze-markup-0.8.2.8 Completed zlib-0.6.2.3 Starting HUnit-1.6.2.0 Building HUnit-1.6.2.0 Completed blaze-markup-0.8.2.8 Starting extra-1.7.9 Building extra-1.7.9 Completed HUnit-1.6.2.0 Starting data-default-instances-containers-0.0.1 Building data-default-instances-containers-0.0.1 Completed base-compat-batteries-0.11.2 Starting cookie-0.4.5 Building cookie-0.4.5 Completed data-default-instances-containers-0.0.1 Starting data-default-instances-dlist-0.0.1 Building data-default-instances-dlist-0.0.1 Completed data-default-instances-dlist-0.0.1 Starting ansi-terminal-0.11 Completed cookie-0.4.5 Starting unordered-containers-0.2.14.0 Building ansi-terminal-0.11 Building unordered-containers-0.2.14.0 Completed extra-1.7.9 Starting time-compat-1.9.6 Completed unicode-transforms-0.3.7.1 Starting psqueues-0.2.7.2 Building time-compat-1.9.6 Building psqueues-0.2.7.2 Completed ansi-terminal-0.11 Starting data-fix-0.3.1 Building data-fix-0.3.1 Completed time-compat-1.9.6 Starting case-insensitive-1.2.1.0 Completed data-fix-0.3.1 Starting async-2.2.3 Building case-insensitive-1.2.1.0 Building async-2.2.3 Completed psqueues-0.2.7.2 Starting old-time-1.1.0.3 Completed case-insensitive-1.2.1.0 Starting data-default-instances-old-locale-0.0.1 Building data-default-instances-old-locale-0.0.1 Completed async-2.2.3 Starting memory-0.16.0 Building old-time-1.1.0.3 Building memory-0.16.0 Completed data-default-instances-old-locale-0.0.1 Starting simple-sendfile-0.2.30 Completed unordered-containers-0.2.14.0 Starting iproute-1.7.11 Building simple-sendfile-0.2.30 Building iproute-1.7.11 Completed simple-sendfile-0.2.30 Starting random-1.2.0 Completed old-time-1.1.0.3 Starting distributive-0.6.2.1 Building random-1.2.0 Building distributive-0.6.2.1 Completed distributive-0.6.2.1 Starting vector-0.12.3.0 Completed iproute-1.7.11 Starting scientific-0.3.7.0 Building vector-0.12.3.0 Building scientific-0.3.7.0 Completed memory-0.16.0 Starting network-uri-2.6.4.1 Building network-uri-2.6.4.1 Completed random-1.2.0 Starting transformers-base-0.4.5.2 Building transformers-base-0.4.5.2 Completed scientific-0.3.7.0 Starting constraints-0.13 Completed transformers-base-0.4.5.2 Starting resourcet-1.2.4.2 Building constraints-0.13 Building resourcet-1.2.4.2 Completed network-uri-2.6.4.1 Starting blaze-html-0.9.1.2 Building blaze-html-0.9.1.2 Completed resourcet-1.2.4.2 Starting filepattern-0.1.2 Building filepattern-0.1.2 Completed constraints-0.13 Starting commonmark-0.2 Completed filepattern-0.1.2 Starting ansi-wl-pprint-0.6.9 Building commonmark-0.2 Building ansi-wl-pprint-0.6.9 Completed ansi-wl-pprint-0.6.9 Starting http-types-0.12.3 Building http-types-0.12.3 Completed http-types-0.12.3 Starting unliftio-0.2.17 Building unliftio-0.2.17 Completed blaze-html-0.9.1.2 Starting typed-process-0.2.6.0 Building typed-process-0.2.6.0 Completed typed-process-0.2.6.0 Starting hinotify-0.4.1 Building hinotify-0.4.1 Completed unliftio-0.2.17 Starting data-default-0.7.1.1 Building data-default-0.7.1.1 Completed hinotify-0.4.1 Starting vault-0.3.1.5 Completed data-default-0.7.1.1 Starting relude-1.0.0.1 Building vault-0.3.1.5 Building relude-1.0.0.1 Completed vault-0.3.1.5 Starting expiring-cache-map-0.0.6.1 Building expiring-cache-map-0.0.6.1 Completed vector-0.12.3.0 Starting unix-time-0.4.7 Completed commonmark-0.2 Starting comonad-5.0.8 Building comonad-5.0.8 Completed expiring-cache-map-0.0.6.1 Starting pem-0.2.4 Building unix-time-0.4.7 Building pem-0.2.4 Completed pem-0.2.4 Starting cryptonite-0.29 Completed unix-time-0.4.7 Starting asn1-types-0.3.4 Building cryptonite-0.29 Building asn1-types-0.3.4 Completed comonad-5.0.8 Starting uuid-types-1.0.5 Building uuid-types-1.0.5 Completed relude-1.0.0.1 Starting streaming-commons-0.2.2.1 Building streaming-commons-0.2.2.1 Completed asn1-types-0.3.4 Starting QuickCheck-2.14.2 Building QuickCheck-2.14.2 Completed uuid-types-1.0.5 Starting megaparsec-9.0.1 Building megaparsec-9.0.1 Completed streaming-commons-0.2.2.1 Starting attoparsec-0.13.2.5 Building attoparsec-0.13.2.5 Completed megaparsec-9.0.1 Starting monad-control-1.0.2.3 Building monad-control-1.0.2.3 Completed attoparsec-0.13.2.5 Starting optparse-applicative-0.16.1.0 Building optparse-applicative-0.16.1.0 Completed monad-control-1.0.2.3 Starting wai-3.2.3 Building wai-3.2.3 Completed wai-3.2.3 Starting vector-algorithms-0.8.0.4 Completed QuickCheck-2.14.2 Starting commonmark-extensions-0.2.1.1 Building vector-algorithms-0.8.0.4 Building commonmark-extensions-0.2.1.1 Completed optparse-applicative-0.16.1.0 Starting http2-3.0.1 Building http2-3.0.1 Completed commonmark-extensions-0.2.1.1 Starting fast-logger-3.0.5 Completed vector-algorithms-0.8.0.4 Starting bifunctors-5.5.11 Building fast-logger-3.0.5 Building bifunctors-5.5.11 Completed fast-logger-3.0.5 Starting lvar-0.1.0.0 Building lvar-0.1.0.0 Completed lvar-0.1.0.0 Starting asn1-encoding-0.9.6 Building asn1-encoding-0.9.6 Completed asn1-encoding-0.9.6 Starting shower-0.2.0.2 Building shower-0.2.0.2 Completed bifunctors-5.5.11 Starting neat-interpolation-0.5.1.2 Completed http2-3.0.1 Starting websockets-0.12.7.2 Building neat-interpolation-0.5.1.2 Building websockets-0.12.7.2 Completed shower-0.2.0.2 Starting http-date-0.0.11 Building http-date-0.0.11 Completed neat-interpolation-0.5.1.2 Starting lifted-base-0.2.3.12 Building lifted-base-0.2.3.12 Completed http-date-0.0.11 Starting mono-traversable-1.0.15.1 Building mono-traversable-1.0.15.1 Completed lifted-base-0.2.3.12 Starting wai-logger-2.3.6 Completed websockets-0.12.7.2 Starting asn1-parse-0.9.5 Building asn1-parse-0.9.5 Completed asn1-parse-0.9.5 Starting profunctors-5.6.2 Building wai-logger-2.3.6 Building profunctors-5.6.2 Completed wai-logger-2.3.6 Starting assoc-1.0.2 Building assoc-1.0.2 Completed assoc-1.0.2 Starting lifted-async-0.10.2 Building lifted-async-0.10.2 Completed cryptonite-0.29 Starting enclosed-exceptions-1.0.3 Building enclosed-exceptions-1.0.3 Completed enclosed-exceptions-1.0.3 Starting these-1.1.1.1 Completed lifted-async-0.10.2 Starting x509-1.7.5 Building these-1.1.1.1 Building x509-1.7.5 Completed profunctors-5.6.2 Starting wai-middleware-static-0.9.0 Building wai-middleware-static-0.9.0 Completed mono-traversable-1.0.15.1 Starting shelly-1.9.0 Building shelly-1.9.0 Completed these-1.1.1.1 Starting conduit-1.3.4.1 Completed wai-middleware-static-0.9.0 Starting strict-0.4.0.1 Building conduit-1.3.4.1 Building strict-0.4.0.1 Completed x509-1.7.5 Starting warp-3.3.16 Building warp-3.3.16 Completed strict-0.4.0.1 Starting aeson-1.5.6.0 Completed shelly-1.9.0 Starting fsnotify-0.3.0.1 Building aeson-1.5.6.0 Building fsnotify-0.3.0.1 Completed fsnotify-0.3.0.1 Completed warp-3.3.16 Completed conduit-1.3.4.1 Starting conduit-extra-1.3.5 Building conduit-extra-1.3.5 Completed conduit-extra-1.3.5 Starting monad-logger-0.3.36 Building monad-logger-0.3.36 Completed monad-logger-0.3.36 Starting monad-logger-extras-0.1.1.1 Building monad-logger-extras-0.1.1.1 Completed monad-logger-extras-0.1.1.1 Completed aeson-1.5.6.0 Starting pandoc-types-1.22 Starting wai-extra-3.1.6 Building pandoc-types-1.22 Building wai-extra-3.1.6 Completed wai-extra-3.1.6 Starting wai-app-static-3.1.7.2 Building wai-app-static-3.1.7.2 Completed wai-app-static-3.1.7.2 Starting wai-websockets-3.0.1.2 Building wai-websockets-3.0.1.2 Completed wai-websockets-3.0.1.2 Completed pandoc-types-1.22 Starting commonmark-pandoc-0.2.1 Building commonmark-pandoc-0.2.1 Completed commonmark-pandoc-0.2.1 Starting ema-0.1.0.0 Building ema-0.1.0.0 Failed to install ema-0.1.0.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/ema-0.1.0.0-3TwX3UQtwFKCLj2SYB68HA.log ): cabal: Entering directory '/tmp/cabal-tmp-31888/ema-0.1.0.0' Configuring ema-0.1.0.0... Preprocessing library for ema-0.1.0.0.. Building library for ema-0.1.0.0.. [ 1 of 14] Compiling Ema.CLI ( src/Ema/CLI.hs, dist/build/Ema/CLI.o, dist/build/Ema/CLI.dyn_o ) [ 2 of 14] Compiling Ema.Helper.FileSystem ( src/Ema/Helper/FileSystem.hs, dist/build/Ema/Helper/FileSystem.o, dist/build/Ema/Helper/FileSystem.dyn_o ) [ 3 of 14] Compiling Ema.Helper.Tailwind ( src/Ema/Helper/Tailwind.hs, dist/build/Ema/Helper/Tailwind.o, dist/build/Ema/Helper/Tailwind.dyn_o ) [ 4 of 14] Compiling Ema.Route.Slug ( src/Ema/Route/Slug.hs, dist/build/Ema/Route/Slug.o, dist/build/Ema/Route/Slug.dyn_o ) [ 5 of 14] Compiling Ema.Class ( src/Ema/Class.hs, dist/build/Ema/Class.o, dist/build/Ema/Class.dyn_o ) [ 6 of 14] Compiling Ema.Route.UrlStrategy ( src/Ema/Route/UrlStrategy.hs, dist/build/Ema/Route/UrlStrategy.o, dist/build/Ema/Route/UrlStrategy.dyn_o ) [ 7 of 14] Compiling Ema.Route ( src/Ema/Route.hs, dist/build/Ema/Route.o, dist/build/Ema/Route.dyn_o ) [ 8 of 14] Compiling Ema.Generate ( src/Ema/Generate.hs, dist/build/Ema/Generate.o, dist/build/Ema/Generate.dyn_o ) [ 9 of 14] Compiling Ema.Server ( src/Ema/Server.hs, dist/build/Ema/Server.o, dist/build/Ema/Server.dyn_o ) [10 of 14] Compiling Ema.App ( src/Ema/App.hs, dist/build/Ema/App.o, dist/build/Ema/App.dyn_o ) src/Ema/App.hs:114:66: error: Ambiguous occurrence lookupEnv It could refer to either Prelude.lookupEnv, imported from Prelude at src/Ema/App.hs:7:8-14 (and originally defined in Relude.Lifted.Env) or System.Environment.lookupEnv, imported from System.Environment at src/Ema/App.hs:27:28-36 | 114 | port <- liftIO $ fromMaybe 8000 . (readMaybe @Int =<<) <$> lookupEnv "PORT" | ^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-31888/ema-0.1.0.0' cabal: Error: some packages failed to install: ema-0.1.0.0-3TwX3UQtwFKCLj2SYB68HA failed during the building phase. The exception was: ExitFailure 1