Cabal：Windows 8.1 中不存在

Question

今天我在笔记本电脑上安装了 windows 8.1 和 haskell。我正在尝试构建自己的 haskell 库，但是当我尝试使用 cabal sdist 时出现错误。这是错误：

D:\Development\School\AFP\Assignments\Practice\Exercise\Project>cabal sdist
Distribution quality errors:
'license: NONE' is not a recognised license. The known licenses are: GPL,
GPL-2, GPL-3, LGPL, LGPL-2.1, LGPL-3, AGPL, AGPL-3, BSD2, BSD3, MIT, ISC,
MPL-2.0, Apache, Apache-2.0, PublicDomain, AllRightsReserved, OtherLicense
Distribution quality warnings:
No 'category' field.
No 'maintainer' field.
No 'synopsis' field.
A 'license-file' is not specified.
When distributing packages it is encouraged to specify source control
information in the .cabal file using one or more 'source-repository' sections.
See the Cabal user guide for details.
Note: the public hackage server would reject this package.
Warning: Cannot run preprocessors. Run 'configure' command first.
Building source dist for Project-0.1.0.0...
cabal: does not exist

在使用 "cabal sdist" 之前，我使用了以下命令：

cabal 初始化
cabal 沙箱初始化
cabal 安装-j

每个命令都成功，除了 cabal sdist。 cabal 安装仅给出以下警告：

D:\Development\School\AFP\Assignments\Practice\Exercise\Project>cabal install -j

Resolving dependencies...
In order, the following will be installed:
Project-0.1.0.0 (reinstall)
Warning: Note that reinstalls are always dangerous. Continuing anyway...
Notice: installing into a sandbox located at
D:\Development\School\AFP\Assignments\Practice\Exercise\Project\.cabal-sandbox
Configuring Project-0.1.0.0...
Building Project-0.1.0.0...
Installed Project-0.1.0.0

这是我的 Project.cabal 文件：

-- Initial Project.cabal generated by cabal init.  For further 
-- documentation, see http://haskell.org/cabal/users-guide/

-- Initial Project.cabal generated by cabal init.  For further 
-- documentation, see http://haskell.org/cabal/users-guide/

name:                Project
version:             0.1.0.0
-- synopsis:            
description:         Education
license:             NONE
-- license-file:     
-- author:              
-- maintainer:          
-- copyright:           
-- category:            
build-type:          Simple
extra-source-files: File6, File5, File4, File3, File2 
cabal-version:       >=1.10

library
  exposed-modules:     File1
  -- other-modules:       
  -- other-extensions:    
  build-depends:       base >=4.8 && <4.9, QuickCheck >=2.8 && <2.9
  hs-source-dirs:      src
  default-language:    Haskell2010

我试过google，但找不到好的解决方案。我使用以下版本：

Cabal 版本：1.22.4.0

Haskell版本：7.10.2

如果您需要更多信息，请询问。

Answer 1

我对 sdist 一无所知，但问题很明显：您已将 'NONE' 指定为您的 cabal 文件中的许可证，但 sdist 选项。 configure、build 和 init 不关心特定的许可证，但 sdist 显然关心。

有关详细信息，我在 google 中搜索 "cabal sdist" 并找到了 this。

This [cabal sdist] has the advantage that Cabal will do a bit more checking, and ensure that the tarball has the structure that HackageDB expects.

HackageDB 可能需要一个有效的许可证，因此 "NONE" 是不允许的。

Answer 2

问题是 cabal 无法在 extra-source-files 中找到文件。我以为我不必添加 haskell 文件的扩展名，但这是必需的。

我还有一个问题。 extra-source-files 没有使用 hs-source-dirs，所以我不得不在文件前面显式地写 "src/"。

Cabal：Windows 8.1 中不存在

Cabal: Does not exists in Windows 8.1

haskell

cabal