我很难用 rspec 和 spork 准备好我的环境。我正在 Windows 和 linux 环境（linux：home，windows：work）上开发一个应用程序我在家里有一个使用 rspec 和 spork 配置的项目，当尝试复制该项目运行所需的 gem 时，我得到以下信息尝试安装 spork 时出错。
gem install spork
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing spork:
ERROR: Failed to build gem native extension.
C:/RailsInstaller/Ruby1.8.7/bin/ruby.exe mkrf_conf.rb
Actually, there aren't any native extensions. I'm just dynamically installing de
pendencies based off of your operating system
installing windows dependencies
Failed to install necessary dependency gem win32-process: Could not find a valid
gem 'win32-process' (~> 0.6.1) locally or in a repository
Gem files will remain installed in C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8
/gems/spork-0.8.4 for inspection.
Results logged to C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/spork-0.8.4
/ext/gem_make.out
我真的很沮丧，因为我已经安装了正确版本的 win32-process。如果我跑
gem list
abstract (1.0.0)
actionmailer (3.0.5, 3.0.4)
actionpack (3.0.5, 3.0.4, 3.0.0)
activemodel (3.0.5, 3.0.4, 3.0.0)
activerecord (3.0.5, 3.0.4)
activeresource (3.0.5, 3.0.4)
activesupport (3.0.5, 3.0.4, 3.0.0)
arel (2.0.9, 2.0.8)
autotest (4.4.6)
autotest-growl (0.2.9)
autotest-rails-pure (4.1.2)
builder (2.1.2)
bundler (1.0.10)
diff-lcs (1.1.2)
erubis (2.6.6)
hoe (2.9.1)
i18n (0.5.0, 0.4.1)
json (1.5.1 x86-mingw32)
json_pure (1.5.1)
mail (2.2.15)
mime-types (1.16)
minitest (2.0.2)
nokogiri (1.4.4.1 x86-mingw32, 1.4.4
open4 (1.0.1)
pg (0.10.1)
Platform (0.4.0)
polyglot (0.3.1)
POpen4 (0.1.4)
racc (1.4.6)
rack (1.2.2, 1.2.1)
rack-mount (0.6.13)
rack-test (0.5.7, 0.5.4)
rails (3.0.5, 3.0.4)
railties (3.0.5, 3.0.4, 3.0.0)
rake (0.8.7)
rake-compiler (0.7.6)
rb-readline (0.4.0)
rexical (1.0.5)
rspec (2.5.0)
rspec-core (2.5.1)
rspec-expectations (2.5.0)
rspec-mocks (2.5.0)
rspec-rails (2.5.0)
rubyforge (2.0.4)
rubygems-update (1.6.2)
rubyzip2 (2.0.1)
sqlite3 (1.3.3 x86-mingw32)
sqlite3-ruby (1.3.3)
sys-proctable (0.9.0 x86-mswin32-60)
test-unit (2.2.0)
thor (0.14.6, 0.14.4, 0.14.0)
treetop (1.4.9)
tzinfo (0.3.25, 0.3.24, 0.3.23)
win32-api (1.4.8)
win32-open3 (0.3.2 x86-mingw32)
win32-process (0.6.1)
windows-api (0.4.0)
windows-pr (1.1.3)
ZenTest (4.5.0)
有任何想法吗？提前致谢