# Pastebin 3Whgvu4N ``` src/Database/Esqueleto/Experimental.hs:53:1: warning: [-Wdodgy-imports] The import item ‘From(..)’ suggests that ‘From’ has (in-scope) constructors or class methods, but it has none | 53 | import Database.Esqueleto hiding (from, on, From(..)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ src/Database/Esqueleto/Experimental.hs:61:1: warning: [-Wunused-imports] The import of ‘Database.Esqueleto.Internal.PersistentImport’ is redundant except perhaps to import instances from ‘Database.Esqueleto.Internal.PersistentImport’ To import instances alone, use: import Database.Esqueleto.Internal.PersistentImport() | 61 | import Database.Esqueleto.Internal.PersistentImport | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ haddock: internal error: internal: extractDecl CallStack (from HasCallStack): error, called at utils/haddock/haddock-api/src/Haddock/Interface/Create.hs:1116:12 in main:Haddock.Interface.Create builder for '/nix/store/dklnfibqn984w9w8gh7nzmdfxqj95r3x-esqueleto-lib-esqueleto-3.3.4.0-haddock.drv' failed with exit code 1 cannot build derivation '/nix/store/nck5zlz25f674vma4zd6qyqybsmb0wks-hoogle-local-0.1.drv': 1 dependencies couldn't be built error: build of '/nix/store/fynmwd4cjaivzs0nhcgi67d9ml2xrmgv-ghc-shell-for-backend-ghc-8.6.5-env.drv', '/nix/store/nck5zlz25f674vma4zd6qyqybsmb0wks-hoogle-local-0.1.drv' failed ```