无法在Windows中安装Rails Gem capybara-webkit

Question

当我尝试安装gem时，我会得到以下错误消息：

错误：（gem install capybara-webkit-v'0.10.1')

   Installing capybara-webkit (0.10.1) with native extensions 
 Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

     C:/RUBY/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb 


 Gem files will remain installed in 

 C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.10.1 for 

 inspection.
 Results logged to C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-

 webkit-0.10.1/./gem_make.out

gem_make.out:

   C:/RUBY/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb

   require File.join(File.expand_path(File.dirname(__FILE__)), "lib","capybara_webkit_builder")
 CapybaraWebkitBuilder.build_all

Windows 7（64位）Ruby 1.9.3 Rails 3.2.6 QT 4.8.2 DevKit 32 4.5.2

鲁比：

 RUBYGEMS VERSION: 1.8.16
 RUBY VERSION: 1.9.3 (2012-02-16 patchlevel 125) [i386-mingw32]
 INSTALLATION DIRECTORY: C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1
 RUBY EXECUTABLE: C:/RUBY/RailsInstaller/Ruby1.9.3/bin/ruby.exe
 EXECUTABLE DIRECTORY: C:/RUBY/RailsInstaller/Ruby1.9.3/bin
 RUBYGEMS PLATFORMS:
   ruby
   x86-mingw32
 GEM PATHS:
    C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1
    C:/Users/COMPAQ/.gem/ruby/1.9.1
 GEM CONFIGURATION:
    :update_sources => true
    :verbose => true
    :benchmark => false
    :backtrace => false
    :bulk_threshold => 1000
 REMOTE SOURCES:
    http://rubygems.org/
 ----------------------
 IDE: JetBrains RubyMine 4.0.3, build #RM-117.230
 OS: Windows 7 6.1[x86]
 Java: 1.6.0_29-b11
 RubyMine SDK Environment:
 Sdk: ruby-1.9.3-p125
 Sdk Version: ver.1.9.3p125 p125
 Ruby Interpreter: C:/RUBY/RailsInstaller/Ruby1.9.3/bin/ruby.exe
 RVM Sdk: no
 Sdk Language Level: 1.9
 Sdk Load Path:
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/i386-msvcrt
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/vendor_ruby/1.9.1
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/vendor_ruby/1.9.1/i386-msvcrt
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/vendor_ruby
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/i386-mingw32
      C:/Program Files (x86)/JetBrains/RubyMine 4.0.2/rubystubs19
 Sdk Gem paths: 
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems
      C:/Users/COMPAQ/.gem/ruby/1.9.1/gems
      C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/bundler/gems
      C:/Users/COMPAQ/.gem/ruby/1.9.1/bundler/gems

环境路径：

C:\ruby\railsinstaller\git\cmd；C:\ruby\railsinstaller\ruby1.9.3\bin；C:\程序文件\公共文件\Microsoft共享\Windows Live；C:\程序文件(x86)\公共文件\Microsoft共享\Windows Live；%systemroot%\system32；%systemroot%\system32\wbem；%systemroot%\system32\wbem；%systemroot%\system32\v1.0\；C:\程序文件(x86)\公共文件\teleca共享；C:\程序文件(x86)\teleca共享；C:\垃圾箱

Answer 1

确保安装了Qt v4.7.4w/对mingw32的支持，并将Qt的bin目录添加到path中。在安装过程中，当询问MinGW路径时，请选择ruby193\devkit\MinGW目录。

我以前遇到过同样的问题，这是我找到的最快的解决方案。

较新版本的Qt仍然存在与Windows的兼容性问题。但是，如果您决定尝试一下，请在为Capybara-WebKit构建本机扩展时查看Error。