windows - 构建数据默认包的奇怪错误

Question

我在尝试 cabal install data-default 时收到一些奇怪的错误消息。即使在新的沙箱中，该包也会发生相同的基本现象。我可以毫无问题地安装其他软件包。

错误消息具有以下形式，但会出现在 4 个 data-default-instances- 包中:

[1 of 1] 编译 Data.Default.Instances.OldLocale(Data\Default\Instances\OldLocale.hs，dist\dist-sandbox-6a114df1\build\Data\Default\Instances\OldLocale.o)
C:\Program Files (x86)\MinGHC-7.10.1\ghc-7.10.1\mingw\bin\ar.exe:dist/dist-sandbox-6a114df1\build\libHSdata-default-instances-old-locale-0.0 .1-6jcjjaR25tK4x3nJhHHjFM.a-8696\libHSdata-default-instances-old-locale-0.0.1-6jcjjaR25tK4x3nJhHHjFM.a: 没有这样的文件或目录


知道发生了什么吗？

ghc-pkg 检查的输出

C:\Users\Doug\Documents\GitHub\bird-brain [estimator]> ghc-pkg check
WARNING: cache is out of date: C:/Program Files (x86)/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\pa
ckage.cache
ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix.
Warning: haddock-interfaces: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\QuickCh
eck-2.8\html\QuickCheck.haddock doesn't exist or isn't a file
Warning: haddock-html: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\QuickCheck-2.
8\html doesn't exist or isn't a directory
Warning: haddock-interfaces: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\tf-rand
om-0.5\html\tf-random.haddock doesn't exist or isn't a file
Warning: haddock-html: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\tf-random-0.5
\html doesn't exist or isn't a directory
Warning: haddock-interfaces: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\random-
1.1\html\random.haddock doesn't exist or isn't a file
Warning: haddock-html: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\random-1.1\ht
ml doesn't exist or isn't a directory
Warning: haddock-interfaces: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\primiti
ve-0.5.4.0\html\primitive.haddock doesn't exist or isn't a file
Warning: haddock-html: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\primitive-0.5
.4.0\html doesn't exist or isn't a directory
Warning: haddock-interfaces: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\mtl-2.2
.1\html\mtl.haddock doesn't exist or isn't a file
Warning: haddock-html: C:\Users\Doug\AppData\Roaming\cabal\doc\i386-windows-ghc-7.10.1\mtl-2.2.1\htm
l doesn't exist or isn't a directory

Answer 1

使用 https://github.com/haskell/cabal/issues/2502 的策略有可能解决此问题，这最终与 Windows 对总路径长度的限制有关。

使用堆栈是另一种解决方案，可能是第一个尝试的解决方案，因为它在内部使用的文件夹可能离根足够近，以便路径有效。