私はthe servant tutorialに従おうとしていますが、私はCabalエラーUnknown fields: build-tool-depends
に入っています。Cabalエラーサーバントチュートリアルに従うために「不明なフィールド:build-tool-depends」
name: tutorial
version: 0.10
synopsis: The servant tutorial
homepage: http://haskell-servant.readthedocs.org/
license: BSD3
license-file: LICENSE
author: Servant Contributors
maintainer: [email protected]
build-type: Simple
cabal-version: >=1.10
library
exposed-modules: Server
build-depends: base == 4.*
, base-compat
, text
, aeson
, aeson-compat
, blaze-html
, directory
, blaze-markup
, containers
, servant == 0.11.*
, servant-server == 0.11.*
, servant-client == 0.11.*
, servant-docs == 0.11.*
, servant-js >= 0.9 && <0.10
, warp
, http-api-data
, http-media
, lucid
, time
, string-conversions
, bytestring
, attoparsec
, mtl
, random
, js-jquery
, wai
, http-types
, transformers
, markdown-unlit >= 0.4
, http-client
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit
test-suite spec
type: exitcode-stdio-1.0
ghc-options: -Wall
default-language: Haskell2010
hs-source-dirs: test
main-is: Spec.hs
other-modules: JavascriptSpec
build-depends: base == 4.*
, tutorial
, hspec
, hspec-wai
, string-conversions
はcabal build
これを構築することができるはずです:これは私のtutorial.cabal
ファイル(私はservant's github repoからこれを得た)のですか?これは私が出力を取得されています
cabal-install version 1.24.0.2
compiled using version 1.24.2.0 of the Cabal library
私は、このエラーのために私のApiType.hs
ファイルの問題を考えていませんが、ここでは念のためです:
➜ servant cabal build
Package has never been configured. Configuring with default flags. If this
fails, please run configure manually.
Warning: tutorial.cabal: Unknown fields: build-tool-depends (line 46)
Fields allowed in this section:
...
cabal --version
が与える
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneriC#-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeOperators #-}
module Server where
import Prelude()
import Prelude.Compat
import Control.Monad.Except
import Control.Monad.Reader
import Data.Aeson.Compat
import Data.Aeson.Types
import Data.Attoparsec.ByteString
import Data.ByteString (ByteString)
import Data.List
import Data.Maybe
import Data.String.Conversions
import Data.Time.Calendar
import GHC.Generics
import Lucid
import Network.HTTP.Media ((//), (/:))
import Network.Wai
import Network.Wai.Handler.Warp
import Servant
import System.Directory
import Text.Blaze
import Text.Blaze.Html.Renderer.Utf8
import qualified Data.Aeson.Parser
import qualified Text.Blaze.Html
type UserAPI =
"users" :> Get '[JSON] [User]
-- :<|> "user" :> Capture "id" Integer :> Get '[JSON] User
-- :<|> "user" :> ReqBody '[JSON] User :> Post '[JSON] User
data User = User {
id :: Int,
name :: String,
age :: Int,
email :: String,
registration_date :: UTCTime
}
instance ToJSON User
users1 :: [User]
users1 =
[ User 1 "Isaac Newton" 372 "[email protected]" (fromGregorian 1683 3 1)
, User 2 "Albert Einstein" 136 "[email protected]" (fromGregorian 1905 12 1)
]
server1 :: Server UserAPI
server1 = return users1
userAPI :: Proxy UserAPI
userAPI = Proxy
app1 :: Application
app1 = serve userAPI server1
main :: IO()
main = run 8081 app1
どのようなヘルプも大歓迎です!
もっと新しいバージョンのCabal-installが必要な場合もあります。 'cabal update'の後に' cabal install cabal-install'を実行して(うまくいけば)最新バージョンを入手するか、https://www.haskell.org/cabal/download.htmlから入手してください – danidiaz