Resolving dependencies... Starting StateVar-1.2.1 Starting auto-update-0.1.6 Starting base-orphans-0.8.4 Starting base-compat-0.11.2 Building StateVar-1.2.1 Building auto-update-0.1.6 Building base-orphans-0.8.4 Building base-compat-0.11.2 Completed StateVar-1.2.1 Starting base64-bytestring-1.2.0.1 Completed auto-update-0.1.6 Starting blaze-builder-0.4.2.1 Building base64-bytestring-1.2.0.1 Building blaze-builder-0.4.2.1 Completed base64-bytestring-1.2.0.1 Starting call-stack-0.4.0 Completed base-orphans-0.8.4 Starting data-default-class-0.1.2.0 Building call-stack-0.4.0 Building data-default-class-0.1.2.0 Completed base-compat-0.11.2 Starting dlist-1.0 Completed blaze-builder-0.4.2.1 Starting easy-file-0.2.2 Completed call-stack-0.4.0 Building dlist-1.0 Starting hashable-1.3.2.0 Building easy-file-0.2.2 Building hashable-1.3.2.0 Completed data-default-class-0.1.2.0 Starting indexed-traversable-0.1.1 Building indexed-traversable-0.1.1 Completed easy-file-0.2.2 Starting integer-logarithms-1.0.3.1 Building integer-logarithms-1.0.3.1 Completed dlist-1.0 Starting lift-type-0.1.0.1 Completed hashable-1.3.2.0 Starting microlens-0.4.12.0 Building lift-type-0.1.0.1 Completed integer-logarithms-1.0.3.1 Starting monad-loops-0.4.3 Building microlens-0.4.12.0 Building monad-loops-0.4.3 Completed indexed-traversable-0.1.1 Starting network-3.1.2.1 Completed lift-type-0.1.0.1 Starting old-locale-1.0.0.7 Building old-locale-1.0.0.7 Completed monad-loops-0.4.3 Starting parallel-3.2.2.0 Completed old-locale-1.0.0.7 Starting path-pieces-0.2.1 Building parallel-3.2.2.0 Completed microlens-0.4.12.0 Starting persistent-template-2.12.0.0 Building path-pieces-0.2.1 Building persistent-template-2.12.0.0 Building network-3.1.2.1 Completed persistent-template-2.12.0.0 Starting primitive-0.7.1.0 Building primitive-0.7.1.0 Completed path-pieces-0.2.1 Starting reflection-2.1.6 Completed parallel-3.2.2.0 Starting semigroups-0.19.1 Building reflection-2.1.6 Building semigroups-0.19.1 Completed semigroups-0.19.1 Starting silently-1.2.5.1 Building silently-1.2.5.1 Completed silently-1.2.5.1 Starting split-0.2.3.4 Building split-0.2.3.4 Completed reflection-2.1.6 Starting splitmix-0.1.0.3 Building splitmix-0.1.0.3 Completed split-0.2.3.4 Starting stm-chans-3.0.0.4 Completed splitmix-0.1.0.3 Starting tagged-0.8.6.1 Building stm-chans-3.0.0.4 Building tagged-0.8.6.1 Completed network-3.1.2.1 Starting th-abstraction-0.4.2.0 Building th-abstraction-0.4.2.0 Completed stm-chans-3.0.0.4 Starting transformers-compat-0.6.6 Completed tagged-0.8.6.1 Starting unix-compat-0.5.3 Completed primitive-0.7.1.0 Starting unliftio-core-0.2.0.1 Building transformers-compat-0.6.6 Building unix-compat-0.5.3 Building unliftio-core-0.2.0.1 Completed unliftio-core-0.2.0.1 Starting void-0.7.3 Completed th-abstraction-0.4.2.0 Starting zlib-0.6.2.3 Building void-0.7.3 Completed unix-compat-0.5.3 Starting contravariant-1.5.3 Building zlib-0.6.2.3 Building contravariant-1.5.3 Completed transformers-compat-0.6.6 Starting base-compat-batteries-0.11.2 Completed void-0.7.3 Starting blaze-markup-0.8.2.8 Building base-compat-batteries-0.11.2 Building blaze-markup-0.8.2.8 Completed contravariant-1.5.3 Starting cookie-0.4.5 Building cookie-0.4.5 Completed blaze-markup-0.8.2.8 Starting unordered-containers-0.2.14.0 Completed zlib-0.6.2.3 Starting time-compat-1.9.6 Building unordered-containers-0.2.14.0 Building time-compat-1.9.6 Completed cookie-0.4.5 Starting data-fix-0.3.1 Building data-fix-0.3.1 Completed base-compat-batteries-0.11.2 Starting case-insensitive-1.2.1.0 Building case-insensitive-1.2.1.0 Completed data-fix-0.3.1 Starting async-2.2.3 Building async-2.2.3 Completed case-insensitive-1.2.1.0 Starting old-time-1.1.0.3 Completed time-compat-1.9.6 Starting random-1.2.0 Building random-1.2.0 Building old-time-1.1.0.3 Completed async-2.2.3 Starting distributive-0.6.2.1 Building distributive-0.6.2.1 Completed old-time-1.1.0.3 Starting vector-0.12.3.0 Completed distributive-0.6.2.1 Starting scientific-0.3.7.0 Building vector-0.12.3.0 Building scientific-0.3.7.0 Completed unordered-containers-0.2.14.0 Starting resourcet-1.2.4.2 Building resourcet-1.2.4.2 Completed random-1.2.0 Starting th-lift-0.8.2 Building th-lift-0.8.2 Completed scientific-0.3.7.0 Starting microlens-th-0.4.3.10 Completed th-lift-0.8.2 Starting transformers-base-0.4.5.2 Building microlens-th-0.4.3.10 Completed resourcet-1.2.4.2 Starting blaze-html-0.9.1.2 Building transformers-base-0.4.5.2 Building blaze-html-0.9.1.2 Completed transformers-base-0.4.5.2 Starting http-types-0.12.3 Building http-types-0.12.3 Completed microlens-th-0.4.3.10 Starting unliftio-0.2.17 Building unliftio-0.2.17 Completed http-types-0.12.3 Starting typed-process-0.2.6.0 Building typed-process-0.2.6.0 Completed typed-process-0.2.6.0 Starting unix-time-0.4.7 Building unix-time-0.4.7 Completed unliftio-0.2.17 Starting comonad-5.0.8 Building comonad-5.0.8 Completed unix-time-0.4.7 Starting uuid-types-1.0.5 Building uuid-types-1.0.5 Completed uuid-types-1.0.5 Starting streaming-commons-0.2.2.1 Completed blaze-html-0.9.1.2 Starting attoparsec-0.14.1 Completed comonad-5.0.8 Starting monad-control-1.0.2.3 Building streaming-commons-0.2.2.1 Building attoparsec-0.14.1 Building monad-control-1.0.2.3 Completed monad-control-1.0.2.3 Starting fast-logger-3.0.5 Building fast-logger-3.0.5 Completed fast-logger-3.0.5 Starting bifunctors-5.5.11 Building bifunctors-5.5.11 Completed streaming-commons-0.2.2.1 Starting lifted-base-0.2.3.12 Building lifted-base-0.2.3.12 Completed attoparsec-0.14.1 Starting attoparsec-iso8601-1.0.2.0 Building attoparsec-iso8601-1.0.2.0 Completed lifted-base-0.2.3.12 Completed attoparsec-iso8601-1.0.2.0 Starting http-api-data-0.4.3 Building http-api-data-0.4.3 Completed vector-0.12.3.0 Starting th-lift-instances-0.1.18 Starting vector-algorithms-0.8.0.4 Building vector-algorithms-0.8.0.4 Building th-lift-instances-0.1.18 Completed th-lift-instances-0.1.18 Starting resource-pool-0.2.3.2 Building resource-pool-0.2.3.2 Completed http-api-data-0.4.3 Starting indexed-traversable-instances-0.1 Completed resource-pool-0.2.3.2 Completed bifunctors-5.5.11 Starting profunctors-5.6.2 Starting semigroupoids-5.3.5 Building indexed-traversable-instances-0.1 Building semigroupoids-5.3.5 Building profunctors-5.6.2 Completed indexed-traversable-instances-0.1 Starting assoc-1.0.2 Building assoc-1.0.2 Completed assoc-1.0.2 Starting these-1.1.1.1 Completed vector-algorithms-0.8.0.4 Starting mono-traversable-1.0.15.1 Building these-1.1.1.1 Building mono-traversable-1.0.15.1 Completed these-1.1.1.1 Starting strict-0.4.0.1 Building strict-0.4.0.1 Completed profunctors-5.6.2 Starting invariant-0.5.4 Completed semigroupoids-5.3.5 Starting free-5.1.7 Building invariant-0.5.4 Building free-5.1.7 Completed strict-0.4.0.1 Starting aeson-1.5.6.0 Building aeson-1.5.6.0 Completed invariant-0.5.4 Completed mono-traversable-1.0.15.1 Starting conduit-1.3.4.1 Building conduit-1.3.4.1 Completed free-5.1.7 Starting adjunctions-4.4 Building adjunctions-4.4 Completed adjunctions-4.4 Starting kan-extensions-5.2.2 Building kan-extensions-5.2.2 Completed conduit-1.3.4.1 Starting conduit-extra-1.3.5 Building conduit-extra-1.3.5 Completed kan-extensions-5.2.2 Starting lens-5.0.1 Building lens-5.0.1 Completed conduit-extra-1.3.5 Starting monad-logger-0.3.36 Building monad-logger-0.3.36 Completed aeson-1.5.6.0 Completed monad-logger-0.3.36 Starting persistent-2.13.0.2 Building persistent-2.13.0.2 Completed lens-5.0.1 Completed persistent-2.13.0.2 Starting persistent-sqlite-2.13.0.3 Building persistent-sqlite-2.13.0.3 Completed persistent-sqlite-2.13.0.3 Downloading persistent-template-classy-0.2.0 Downloaded persistent-template-classy-0.2.0 Starting persistent-template-classy-0.2.0 Building persistent-template-classy-0.2.0 Failed to install persistent-template-classy-0.2.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/persistent-template-classy-0.2.0-HSACkXMpos3FIKL2ZMis8c.log ): cabal: Entering directory '/tmp/cabal-tmp-5741/persistent-template-classy-0.2.0' Configuring persistent-template-classy-0.2.0... Preprocessing library for persistent-template-classy-0.2.0.. Building library for persistent-template-classy-0.2.0.. [1 of 2] Compiling Database.Persist.TH.Classy ( src/Database/Persist/TH/Classy.hs, dist/build/Database/Persist/TH/Classy.o, dist/build/Database/Persist/TH/Classy.dyn_o ) src/Database/Persist/TH/Classy.hs:58:18: error: Not in scope: data constructor EntityDef Perhaps you meant variable entityDef (imported from Database.Persist) | 58 | mkClassyInstance EntityDef {..} = do | ^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-5741/persistent-template-classy-0.2.0' cabal: Error: some packages failed to install: persistent-template-classy-0.2.0-HSACkXMpos3FIKL2ZMis8c failed during the building phase. The exception was: ExitFailure 1