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我相信尝试使用“cabal install yesod-platform”安装 yesod，但安装因以下错误而中止：

cabal: Error: some packages failed to install:
 authenticate-1.2.1.1 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 http-conduit-1.4.1.10 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 wai-extra-1.2.0.5 depends on zlib-conduit-0.4.0.2 which failed to install.
 xss-sanitize-0.3.2 failed while unpacking the package. The exception was:
 user error (truncated tar archive)
 yesod-1.0.1.6 depends on zlib-conduit-0.4.0.2 which failed to install.
 yesod-auth-1.0.2.1 depends on zlib-conduit-0.4.0.2 which failed to install.
 yesod-core-1.0.1.2 depends on zlib-conduit-0.4.0.2 which failed to install.
 yesod-default-1.0.1.1 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 yesod-form-1.0.0.4 depends on zlib-conduit-0.4.0.2 which failed to install.
 yesod-json-1.0.0.1 depends on zlib-conduit-0.4.0.2 which failed to install.
 yesod-persistent-1.0.0.1 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 yesod-platform-1.0.5 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 yesod-routes-1.0.1.2 failed while unpacking the package. The exception was:
 user error (truncated tar archive)
 yesod-static-1.0.0.3 depends on zlib-conduit-0.4.0.2 which failed to
 install.
 zlib-conduit-0.4.0.2 failed while unpacking the package. The exception was:
 user error (truncated tar archive)

任何想法如何解决这个问题？

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1 回答 1

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看起来 zlib-conduit 包没有正确下载。删除下载并重试：

  1. 找出你的 cabal 目录在哪里
    1. 启动 ghci
    2. :m System.Directory
    3. getAppUserDataDirectory "cabal"
  2. 删除packages\hackage.haskell.org\zlib-conduitcabal 目录的子目录
  3. 跑cabal update
  4. 重新运行cabal install yesod-platform

（可能不需要第 3 步，但不会受到伤害。）

于 2012-07-04T08:51:30.413 回答