Haskell - 找不到包

Question

我有一个通过cabal安装的软件包:Data.Vector

但是当我尝试编译其中包含的程序import Data.Vector时:

Drews-MacBook-Pro:Blokus-AI drewgross$ ghc --make -O2 -prof -auto-all playGame

Grid.hs:28:8:
    Could not find module `Data.Vector'
    Perhaps you meant
      Data.Tensor (from Tensor-1.0.0.1)
      Data.Functor (from base)
    Use -v to see a list of the files searched for.
Drews-MacBook-Pro:Blokus-AI drewgross$ 

我以前安装的命令是:

cabal install -p --reinstall --force-reinstalls vector

在尝试编译程序时,我已经完成了其他各种操作,但没有任何工作.我真的想删除所有内容,回到原点并再次下载包.我怎样才能做到这一点？

编辑:进一步调查显示可能有2个版本的Data.Vector:0.10.0.1和0.9.1,也许它们有某种冲突？

编辑:ghc-pkg check列出没有错误,但给了我很多警告,如下所示:

Warning: haddock-interfaces: /Users/drewgross/.cabal/share/doc/haskell-lexer-1.0/html/haskell-lexer.haddock doesn't exist or isn't a file

编辑:GCHi也找不到它

?> import Data.Vector

<no location info>:
    Could not find module `Data.Vector'
    Perhaps you meant Data.Functor (from base)
?> 

编辑ghc-pkg list vector::

Drews-MacBook-Pro:Blokus-AI drewgross$ ghc-pkg list vector
/Library/Frameworks/GHC.framework/Versions/7.4.2-x86_64/usr/lib/ghc-7.4.2/package.conf.d
/Users/drewgross/.ghc/x86_64-darwin-7.4.2/package.conf.d
   vector-0.10.0.1
Drews-MacBook-Pro:Blokus-AI drewgross$ 

并使用-v标志构建:

Drews-MacBook-Pro:Blokus-AI drewgross$ ghc --make -O2 -prof -auto-all -v playGame
Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version 7.4.2
Using binary package database: /usr/local/Cellar/ghc/7.4.2/lib/ghc-7.4.2/package.conf.d/package.cache
Using binary package database: /Users/drewgross/.ghc/x86_64-darwin-7.4.2/package.conf.d/package.cache
package Cabal-1.16.0.3-e689d8e77b2f476229954cd43b1737bd is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd directory-1.1.0.2-72e928d14fc50f31f7e6404839a15691 unix-2.5.1.1-29636eb78541401e8e00393ef5df097e
package Tensor-1.0.0.1-a8f1a59665c3ebc4867678a14fe1460f is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package binary-0.5.1.1-e62c39c3aba8093e9b9655a4a8d2bce9 is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd bytestring-0.10.0.1-9b03e69060669eabf0b20e150305c7be
package bmp-1.2.3.2-c7572ec2bbb802bfd93fed0953c61d5d is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd binary-0.5.1.1-e62c39c3aba8093e9b9655a4a8d2bce9 bytestring-0.10.0.1-9b03e69060669eabf0b20e150305c7be
package bytestring-0.10.0.1-9b03e69060669eabf0b20e150305c7be is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package ghc-paths-0.1.0.9-4e6c624a3431a4fa7630e4fb77be4c83 is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package haskell-lexer-1.0-8fea1c35b626a2de761522690a88c063 is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package primitive-0.4.1-0007d441db5f4ce1ffd66bd3816c2d4e is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package split-0.2.1.1-03ec5738edb34f2e8967d25637b9392f is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd
package vector-0.10.0.1-3450daae3d9f2092020075d05481123c is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd primitive-0.5.0.1-15cdc8c11a54a78809b647af0c2975b3
wired-in package ghc-prim mapped to ghc-prim-0.2.0.0-7d3c2c69a5e8257a04b2c679c40e2fa7
wired-in package integer-gmp mapped to integer-gmp-0.4.0.0-af3a28fdc4138858e0c7c5ecc2a64f43
wired-in package base mapped to base-4.5.1.0-47f48c3ae7f8256a66a23e9dfe22eefc
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.7.0.0-e109822dcbed82c43f9fa60194eb64b5
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -fscc-profiling -static
*** Chasing dependencies:
Chasing modules from: *playGame.hs

Grid.hs:28:8:
    Could not find module `Data.Vector'
    Perhaps you meant Data.Functor (from base)
    Locations searched:
      Data/Vector.hs
      Data/Vector.lhs
*** Deleting temp files:
Deleting: 
*** Deleting temp dirs:
Deleting: 
Drews-MacBook-Pro:Blokus-AI drewgross$ 

这是shell使用的:

Drews-MacBook-Pro:Blokus-AI drewgross$ which ghc
/usr/bin/ghc

我做了cabal install -v lens,显然有大量的输出,但我认为这是相关的部分:

Registering lens-3.7.0.2...
/usr/bin/ghc-pkg update - --global --user
Updating world file...
Drews-MacBook-Pro:Blokus-AI drewgross$ 

这似乎表明他们使用相同的版本.如果相关,我可以发布更多的cabal安装输出.

编辑:来自cabal install -v的更多ghc输出

Building lens-3.7.0.2...
Preprocessing library lens-3.7.0.2...
Building library...
creating dist/build
/usr/bin/ghc --make -package-name lens-3.7.0.2 -hide-all-packages -fbuilding-cabal-package -i -idist/build -isrc -idist/build/autogen -Idist/build/autogen -Idist/build -optP-DTRUSTWORTHY=1 -optP-DDEFAULT_SIGNATURES=1 -optP-include -optPdist/build/autogen/cabal_macros.h -odir dist/build -hidir dist/build -stubdir dist/build -package-id array-0.4.0.0-0b6c5ca7e879a14d110ca4c001dd9297 -package-id base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd -package-id bytestring-0.9.2.1-0044644a71adfe5e950e6c6f6ca13065 -package-id comonad-3.0.0.2-6ef27fce8536ebdf9c364307a0915f63 -package-id comonad-transformers-3.0-a6df581636b1c9b514cfa6560f17d6a3 -package-id comonads-fd-3.0-b906ed7898871c5d2427052e2eefa62e -package-id containers-0.4.2.1-75f143aa39a3e77a1ce2300025bdd8ce -package-id filepath-1.3.0.0-f998e5510c76a98913f57b14b4f16c57 -package-id ghc-prim-0.2.0.0-7d3c2c69a5e8257a04b2c679c40e2fa7 -package-id hashable-1.1.2.5-14291f3b4e96b5599759ce7daa2bd37c -package-id mtl-2.1.2-02e701f9b1590ee88a0b5b0bd5d93a29 -package-id parallel-3.2.0.3-4cdd6067624f867b253b98d6d9fb9f52 -package-id semigroups-0.8.4.1-4d3a86b037504e6000a0354510588745 -package-id split-0.2.1.1-03ec5738edb34f2e8967d25637b9392f -package-id template-haskell-2.7.0.0-29110cc89a711d6ab3e7ee0e0a8ee949 -package-id text-0.11.2.3-473d9a1761b27c7315f2ef4569d93c3c -package-id transformers-0.3.0.0-8e66ecc7d4dae2b07b2b5406908c70e4 -package-id unordered-containers-0.2.2.1-d70d5ccb1df11dbbbaac89571b1ee46d -package-id vector-0.10.0.1-3450daae3d9f2092020075d05481123c -O -Wall -fwarn-tabs -O2 -fdicts-cheap -funbox-strict-fields -XHaskell98 Control.Lens.TH Language.Haskell.TH.Lens Control.Exception.Lens Control.Lens Control.Lens.Action Control.Lens.Classes Control.Lens.Combinators Control.Lens.Fold Control.Lens.Getter Control.Lens.Indexed Control.Lens.IndexedGetter Control.Lens.IndexedFold Control.Lens.IndexedLens Control.Lens.IndexedSetter Control.Lens.IndexedTraversal Control.Lens.Internal Control.Lens.Internal.Zipper Control.Lens.Iso Control.Lens.Loupe Control.Lens.Plated Control.Lens.Prism Control.Lens.Representable Control.Lens.Setter Control.Lens.Simple Control.Lens.Traversal Control.Lens.Tuple Control.Lens.Type Control.Lens.WithIndex Control.Lens.Wrapped Control.Lens.Zipper Control.Lens.Zoom Data.Bits.Lens Data.ByteString.Lens Data.ByteString.Strict.Lens Data.ByteString.Lazy.Lens Data.Complex.Lens Data.Data.Lens Data.Dynamic.Lens Data.HashSet.Lens Data.IntSet.Lens Data.List.Lens Data.List.Split.Lens Data.Sequence.Lens Data.Set.Lens Data.Text.Lens Data.Text.Strict.Lens Data.Text.Lazy.Lens Data.Tree.Lens Data.Typeable.Lens Data.Vector.Lens Data.Vector.Generic.Lens GHC.Generics.Lens Data.Array.Lens System.FilePath.Lens Control.Parallel.Strategies.Lens Control.Seq.Lens Control.Lens.Internal.Combinators
[ 1 of 57] Compiling Control.Lens.Classes ( src/Control/Lens/Classes.hs, dist/build/Control/Lens/Classes.o )
[ 2 of 57] Compiling Control.Lens.Internal ( src/Control/Lens/Internal.hs, dist/build/Control/Lens/Internal.o )
[ 3 of 57] Compiling Control.Lens.Internal.Combinators ( src/Control/Lens/Internal/Combinators.hs, dist/build/Control/Lens/Internal/Combinators.o )
[ 4 of 57] Compiling Control.Lens.Indexed ( src/Control/Lens/Indexed.hs, dist/build/Control/Lens/Indexed.o )
[ 5 of 57] Compiling Control.Lens.IndexedGetter ( src/Control/Lens/IndexedGetter.hs, dist/build/Control/Lens/IndexedGetter.o )
[ 6 of 57] Compiling Control.Lens.Action ( src/Control/Lens/Action.hs, dist/build/Control/Lens/Action.o )
[ 7 of 57] Compiling Control.Lens.Setter ( src/Control/Lens/Setter.hs, dist/build/Control/Lens/Setter.o )

编辑:ghc-pkg转储

Drews-MacBook-Pro:Blokus-AI drewgross$ ghc-pkg dump | grep "id: base"
id: base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd

Answer 1

您的包数据库严重破坏.该ghc -v输出列出了因丢失或递归的依赖关系,其中他们十周不可用的包vector:

package vector-0.10.0.1-3450daae3d9f2092020075d05481123c is unusable due to missing or recursive dependencies:
  base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd primitive-0.5.0.1-15cdc8c11a54a78809b647af0c2975b3

所有破坏的包有一个共同点是缺少(？)依赖

base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd

在哪里

wired-in package base mapped to base-4.5.1.0-47f48c3ae7f8256a66a23e9dfe22eefc

used base有不同的哈希值.

我不知道这是怎么发生的,据我所知,它是不可能重新安装的base,但看起来你有两个ghc-7.4.2样本,它们互相踩着脚趾.

ghc-pkg list 使用

/Library/Frameworks/GHC.framework/Versions/7.4.2-x86_64/usr/lib/ghc-7.4.2/package.conf.d

对于全局包数据库,在编译时使用

Using binary package database: /usr/local/Cellar/ghc/7.4.2/lib/ghc-7.4.2/package.conf.d/package.cache

现在,可能是两个中至少有一个是符号链接,它们都指向同一个地方 - 然后你package.cache的不同步 - 但是

Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version 7.4.2

由相同版本启动的GHC似乎不寻常.

你能确定你是否确实有两个ghc-7.4.2并且命令行使用的是另一个使用的不同的命令行cabal吗？which ghc告诉你shell使用哪一个,并cabal install -v some-package输出命令行cabal使用的内容,包括使用的GHC的整个路径.