Resolving dependencies... Starting OneTuple-0.4.1.1 Starting appar-0.1.8 Starting base-orphans-0.9.1 Starting base64-bytestring-1.2.1.0 Starting byteorder-1.0.4 Starting blaze-builder-0.4.2.3 Starting data-array-byte-0.1.0.1 Starting cereal-0.5.8.3 Starting data-default-class-0.1.2.0 Starting extra-data-yj-0.1.0.0 Starting generically-0.1.1 Starting freer-par-monad-0.1.0.0 Starting integer-logarithms-1.0.3.1 Starting mime-types-0.1.2.0 Starting hourglass-0.2.12 Starting old-locale-1.0.0.7 Starting split-0.2.4 Starting tagged-0.8.8 Starting th-abstraction-0.5.0.0 Starting network-3.1.4.0 Starting th-compat-0.1.4 Starting union-color-0.1.2.1 Starting transformers-compat-0.7.2 Starting unliftio-core-0.2.1.0 Starting vector-stream-0.1.0.0 Starting StateVar-1.2.2 Starting basement-0.0.16 Starting dlist-1.0 Starting type-flip-0.1.0.0 Starting splitmix-0.1.0.5 Starting zlib-0.6.3.0 Starting base-compat-0.13.1 Building appar-0.1.8 Building generically-0.1.1 Building base64-bytestring-1.2.1.0 Building OneTuple-0.4.1.1 Building integer-logarithms-1.0.3.1 Building byteorder-1.0.4 Building old-locale-1.0.0.7 Building hourglass-0.2.12 Building data-array-byte-0.1.0.1 Building data-default-class-0.1.2.0 Building extra-data-yj-0.1.0.0 Building base-orphans-0.9.1 Building freer-par-monad-0.1.0.0 Building blaze-builder-0.4.2.3 Building split-0.2.4 Building cereal-0.5.8.3 Building transformers-compat-0.7.2 Building tagged-0.8.8 Building StateVar-1.2.2 Building unliftio-core-0.2.1.0 Building th-compat-0.1.4 Building union-color-0.1.2.1 Building mime-types-0.1.2.0 Building vector-stream-0.1.0.0 Building dlist-1.0 Building basement-0.0.16 Building type-flip-0.1.0.0 Building th-abstraction-0.5.0.0 Building splitmix-0.1.0.5 Building base-compat-0.13.1 Building zlib-0.6.3.0 Building network-3.1.4.0 Completed byteorder-1.0.4 Completed split-0.2.4 Completed old-locale-1.0.0.7 Starting old-time-1.1.0.4 Completed data-default-class-0.1.2.0 Starting cookie-0.4.6 Completed unliftio-core-0.2.1.0 Completed integer-logarithms-1.0.3.1 Building cookie-0.4.6 Completed generically-0.1.1 Completed type-flip-0.1.0.0 Completed extra-data-yj-0.1.0.0 Completed freer-par-monad-0.1.0.0 Building old-time-1.1.0.4 Completed OneTuple-0.4.1.1 Completed StateVar-1.2.2 Starting contravariant-1.5.5 Completed appar-0.1.8 Completed data-array-byte-0.1.0.1 Starting hashable-1.4.3.0 Starting primitive-0.8.0.0 Completed splitmix-0.1.0.5 Starting random-1.2.1.1 Building contravariant-1.5.5 Completed dlist-1.0 Completed base-orphans-0.9.1 Building hashable-1.4.3.0 Building primitive-0.8.0.0 Completed th-compat-0.1.4 Starting network-uri-2.6.4.2 Building random-1.2.1.1 Completed base64-bytestring-1.2.1.0 Completed union-color-0.1.2.1 Building network-uri-2.6.4.2 Completed transformers-compat-0.7.2 Completed blaze-builder-0.4.2.3 Completed tagged-0.8.8 Starting foldable1-classes-compat-0.1 Starting assoc-1.1 Starting distributive-0.6.2.1 Completed vector-stream-0.1.0.0 Building foldable1-classes-compat-0.1 Building assoc-1.1 Building distributive-0.6.2.1 Completed th-abstraction-0.5.0.0 Completed zlib-0.6.3.0 Completed mime-types-0.1.2.0 Completed hourglass-0.2.12 Completed cookie-0.4.6 Completed old-time-1.1.0.4 Starting unix-time-0.4.11 Completed cereal-0.5.8.3 Completed contravariant-1.5.5 Building unix-time-0.4.11 Completed assoc-1.1 Completed base-compat-0.13.1 Completed distributive-0.6.2.1 Completed hashable-1.4.3.0 Starting text-short-0.1.5 Starting unordered-containers-0.2.19.1 Starting data-fix-0.3.2 Starting case-insensitive-1.2.1.0 Starting async-2.2.5 Starting time-compat-1.9.6.1 Completed foldable1-classes-compat-0.1 Starting these-1.2 Starting indexed-traversable-0.1.3 Starting base-compat-batteries-0.13.1 Building data-fix-0.3.2 Building text-short-0.1.5 Building unordered-containers-0.2.19.1 Building case-insensitive-1.2.1.0 Building time-compat-1.9.6.1 Building async-2.2.5 Building indexed-traversable-0.1.3 Building these-1.2 Building base-compat-batteries-0.13.1 Completed network-uri-2.6.4.2 Completed network-3.1.4.0 Starting iproute-1.7.12 Completed unix-time-0.4.11 Building iproute-1.7.12 Completed random-1.2.1.1 Starting uuid-types-1.0.5.1 Starting type-set-0.1.0.0 Starting QuickCheck-2.14.3 Building uuid-types-1.0.5.1 Building QuickCheck-2.14.3 Building type-set-0.1.0.0 Completed case-insensitive-1.2.1.0 Starting http-types-0.12.4 Building http-types-0.12.4 Completed primitive-0.8.0.0 Starting scientific-0.3.7.0 Starting resourcet-1.3.0 Starting vector-0.13.1.0 Completed data-fix-0.3.2 Completed async-2.2.5 Starting typed-process-0.2.11.1 Starting streaming-commons-0.2.2.6 Building resourcet-1.3.0 Building scientific-0.3.7.0 Building vector-0.13.1.0 Building typed-process-0.2.11.1 Building streaming-commons-0.2.2.6 Completed text-short-0.1.5 Completed time-compat-1.9.6.1 Completed these-1.2 Starting strict-0.5 Completed indexed-traversable-0.1.3 Starting comonad-5.0.8 Building strict-0.5 Building comonad-5.0.8 Completed type-set-0.1.0.0 Starting moffy-0.1.1.0 Completed base-compat-batteries-0.13.1 Building moffy-0.1.1.0 Completed uuid-types-1.0.5.1 Completed unordered-containers-0.2.19.1 Completed iproute-1.7.12 Completed resourcet-1.3.0 Completed http-types-0.12.4 Completed typed-process-0.2.11.1 Completed scientific-0.3.7.0 Starting attoparsec-0.14.4 Building attoparsec-0.14.4 Completed comonad-5.0.8 Starting bifunctors-5.6.1 Building bifunctors-5.6.1 Completed streaming-commons-0.2.2.6 Starting http-client-0.7.16 Building http-client-0.7.16 Completed strict-0.5 Completed moffy-0.1.1.0 Completed basement-0.0.16 Starting socks-0.6.1 Starting memory-0.18.0 Completed QuickCheck-2.14.3 Building socks-0.6.1 Building memory-0.18.0 Completed socks-0.6.1 Completed bifunctors-5.6.1 Starting semigroupoids-6.0.0.1 Completed attoparsec-0.14.4 Building semigroupoids-6.0.0.1 Completed http-client-0.7.16 Completed memory-0.18.0 Starting pem-0.2.4 Starting asn1-types-0.3.4 Starting crypton-0.34 Building asn1-types-0.3.4 Building pem-0.2.4 Building crypton-0.34 Completed pem-0.2.4 Completed asn1-types-0.3.4 Starting asn1-encoding-0.9.6 Building asn1-encoding-0.9.6 Completed vector-0.13.1.0 Starting indexed-traversable-instances-0.1.1.2 Starting bitvec-1.1.5.0 Starting JuicyPixels-3.3.8 Building indexed-traversable-instances-0.1.1.2 Building JuicyPixels-3.3.8 Building bitvec-1.1.5.0 Completed semigroupoids-6.0.0.1 Completed asn1-encoding-0.9.6 Starting asn1-parse-0.9.5 Building asn1-parse-0.9.5 Completed indexed-traversable-instances-0.1.1.2 Starting witherable-0.4.2 Starting semialign-1.3 Building semialign-1.3 Building witherable-0.4.2 Completed asn1-parse-0.9.5 Completed semialign-1.3 Completed bitvec-1.1.5.0 Starting vector-algorithms-0.9.0.1 Completed witherable-0.4.2 Starting aeson-2.1.2.1 Building vector-algorithms-0.9.0.1 Building aeson-2.1.2.1 Completed vector-algorithms-0.9.0.1 Starting mono-traversable-1.0.15.3 Building mono-traversable-1.0.15.3 Completed JuicyPixels-3.3.8 Completed aeson-2.1.2.1 Starting attoparsec-aeson-2.1.0.0 Completed mono-traversable-1.0.15.3 Starting conduit-1.3.5 Building attoparsec-aeson-2.1.0.0 Building conduit-1.3.5 Completed attoparsec-aeson-2.1.0.0 Completed conduit-1.3.5 Starting conduit-extra-1.3.6 Completed crypton-0.34 Starting crypton-x509-1.7.6 Building conduit-extra-1.3.6 Building crypton-x509-1.7.6 Completed conduit-extra-1.3.6 Completed crypton-x509-1.7.6 Starting crypton-x509-store-1.6.9 Building crypton-x509-store-1.6.9 Completed crypton-x509-store-1.6.9 Starting crypton-x509-system-1.6.7 Starting crypton-x509-validation-1.6.12 Building crypton-x509-system-1.6.7 Building crypton-x509-validation-1.6.12 Completed crypton-x509-system-1.6.7 Completed crypton-x509-validation-1.6.12 Starting tls-1.9.0 Building tls-1.9.0 Completed tls-1.9.0 Starting crypton-connection-0.3.1 Building crypton-connection-0.3.1 Completed crypton-connection-0.3.1 Starting http-client-tls-0.3.6.3 Building http-client-tls-0.3.6.3 Completed http-client-tls-0.3.6.3 Starting http-conduit-2.3.8.3 Building http-conduit-2.3.8.3 Completed http-conduit-2.3.8.3 Starting moffy-samples-events-0.2.2.5 Building moffy-samples-events-0.2.2.5 Completed moffy-samples-events-0.2.2.5 Starting moffy-samples-0.1.0.3 Building moffy-samples-0.1.0.3 Failed to install moffy-samples-0.1.0.3 Build log ( /home/builder/.cabal/logs/ghc-9.2.4/moffy-samples-0.1.0.3-ib4kV7bBneGvJMoDs8AUo.log ): cabal: Entering directory '/tmp/cabal-tmp-1374915/moffy-samples-0.1.0.3' Configuring moffy-samples-0.1.0.3... Preprocessing library for moffy-samples-0.1.0.3.. Building library for moffy-samples-0.1.0.3.. [1 of 5] Compiling Control.Moffy.Samples.Boxes ( src/Control/Moffy/Samples/Boxes.hs, dist/build/Control/Moffy/Samples/Boxes.o, dist/build/Control/Moffy/Samples/Boxes.dyn_o ) src/Control/Moffy/Samples/Boxes.hs:52:11: error: " Illegal equational constraint ((es :+: es') :+: (es :+: es')) ~ (es :+: es') (Use GADTs or TypeFamilies to permit this) " In the type signature: before :: Firstable es es' a b => React s es a -> React s es' b -> React s (es :+: es') Bool | 52 | before :: Firstable es es' a b => | ^^^^^^^^^^^^^^^^^^^^^^^... cabal: Leaving directory '/tmp/cabal-tmp-1374915/moffy-samples-0.1.0.3' Error: cabal: Some packages failed to install: moffy-samples-0.1.0.3-ib4kV7bBneGvJMoDs8AUo failed during the building phase. The exception was: ExitFailure 1