无法 gem 安装机械化

Question

另见

在执行 gem install mechanize 时出现以下错误：

ERROR:  Error installing mechanize:
        nokogiri requires Ruby version < 2.3, >= 1.9.2.

然而，在你把这归咎于我是个白痴并且不知道自己在做什么之前，如果我运行 nokogiri -v，我明白了：

# Nokogiri (1.6.8.rc3)
    ---
    warnings: []
    nokogiri: 1.6.8.rc3
    ruby:
      version: 2.3.0
      platform: i386-mingw32
      description: ruby 2.3.0p0 (2015-12-25 revision 53290) [i386-mingw32]
      engine: ruby
    libxml:
      binding: extension
      source: packaged
      libxml2_path: "/home/flavorjones/code/oss/nokogiri/ports/i686-w64-mingw32/libxml
2/2.9.3"
      libxslt_path: "/home/flavorjones/code/oss/nokogiri/ports/i686-w64-mingw32/libxsl
t/1.1.28"
      libxml2_patches: []
      libxslt_patches:
      - 0001-Adding-doc-update-related-to-1.1.28.patch
      - 0002-Fix-a-couple-of-places-where-f-printf-parameters-wer.patch
      - 0003-Initialize-pseudo-random-number-generator-with-curre.patch
      - 0004-EXSLT-function-str-replace-is-broken-as-is.patch
      - 0006-Fix-str-padding-to-work-with-UTF-8-strings.patch
      - 0007-Separate-function-for-predicate-matching-in-patterns.patch
      - 0008-Fix-direct-pattern-matching.patch
      - 0009-Fix-certain-patterns-with-predicates.patch
      - 0010-Fix-handling-of-UTF-8-strings-in-EXSLT-crypto-module.patch
      - 0013-Memory-leak-in-xsltCompileIdKeyPattern-error-path.patch
      - 0014-Fix-for-bug-436589.patch
      - 0015-Fix-mkdir-for-mingw.patch
      - 0016-Fix-for-type-confusion-in-preprocessing-attributes.patch
      - 0017-Updated-config.guess.patch
      compiled: 2.9.3
      loaded: 2.9.3

所以很明显 nokogiri 已经安装了，因为我花了大约三个小时才安装它。是否有解决方法以便我可以包含此版本的 nokogiri？我运行宁 Windows 7.

Answer 1

这适用于 Windows 7 位用户运行 Ruby 版本：ruby 2.3.3p222 (2016-11-21 revision 56859) [i386-mingw32] 或更高版本试图安装 mechanize gem

如果您在安装 nokogiri 和 mechanize 时遇到问题，请按照以下方法成功安装。

Install nokogiri's previous version first: gem install nokogiri --pre

您的输出将如下所示：

Fetching: nokogiri-1.6.8.rc3-x86-mingw32.gem (100%)
Nokogiri is built with the packaged libraries: libxml2-2.9.3, libxslt-1.1.28, zlib-1.2
.8, libiconv-1.14.
Successfully installed nokogiri-1.6.8.rc3-x86-mingw32
Parsing documentation for nokogiri-1.6.8.rc3-x86-mingw32
Installing ri documentation for nokogiri-1.6.8.rc3-x86-mingw32
Done installing documentation for nokogiri after 12 seconds
1 gem installed

After you have it successfully installed, install nokogiri version 1.6: gem install nokogiri -v 1.6

输出将如下所示：

Fetching: mini_portile-0.5.3.gem (100%)
Successfully installed mini_portile-0.5.3
Fetching: nokogiri-1.6.0-x86-mingw32.gem (100%)
Successfully installed nokogiri-1.6.0-x86-mingw32
Parsing documentation for mini_portile-0.5.3
Installing ri documentation for mini_portile-0.5.3
Parsing documentation for nokogiri-1.6.0-x86-mingw32
Installing ri documentation for nokogiri-1.6.0-x86-mingw32
Done installing documentation for mini_portile, nokogiri after 9 seconds
2 gems installed

And finally go ahead and install mechanize, IT WILL WORK! gem install mechanize

你终于安装了 mechanize！

Fetching: mechanize-2.7.4.gem (100%)
Successfully installed mechanize-2.7.4
Parsing documentation for mechanize-2.7.4
Installing ri documentation for mechanize-2.7.4
Done installing documentation for mechanize after 9 seconds
1 gem installed

备注:

您可以绕过第一部分，gem install nokogiri --pre 在安装了 nokogiri 版本之前，它不允许我继续，但我不确定那是否只是我的系统。
这是我发现的安装 mechanize 和 nokogiri 的唯一解决方法，如果您遇到问题请告诉我，以便我找到进一步解决问题。

无法 gem 安装机械化

Unable to gem install mechanize

ruby

mechanize

nokogiri