在MAC中安裝Compass的方法

轉自http://davylin.blog.163.com/blog/static/8138791201402624242641/

在MAC中通過gem命令安裝compass時會出異常，原因是compass版本更新了，一些運行時所用到的依賴軟件的版本沒能得到更新，故而出現錯誤。例如，用以下命令安裝compass：

$ gem install compass

安裝完成後，提示安裝成功了compass v0.12.2版。結果運行compass時會出現出錯。

$ compass -v

輸出錯誤的信息如下：

/Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- sass/script/node (LoadError)

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass/sass_extensions/monkey_patches/browser_support.rb:1:in `'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass/sass_extensions/monkey_patches.rb:2:in `block in '

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass/sass_extensions/monkey_patches.rb:1:in `each'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass/sass_extensions/monkey_patches.rb:1:in `'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass/sass_extensions.rb:9:in `'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass.rb:5:in `block in '

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass.rb:4:in `each'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/lib/compass.rb:4:in `'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/bin/compass:20:in `block in '

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/bin/compass:8:in `fallback_load_path'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/gems/compass-0.12.2/bin/compass:19:in `'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/bin/compass:23:in `load'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/bin/compass:23:in `'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/bin/ruby_executable_hooks:15:in `eval'

from /Users/linzhongxin/.rvm/gems/ruby-2.1.0/bin/ruby_executable_hooks:15:in `'

錯出的原因：是缺少相關的依賴軟件。到以下網站查看，此時compass已更新到1.0.0.alpha.17版了。

安裝說明的網址：http://rubygems.org/gems/compass

 

所以需要按以下的方法安裝纔可成功：

$ gem install compass                  ; 安裝基本的compass版本（目前是0.12.2版）

$ gem install chunky_png             ; 安裝運行的依賴軟件 chunky_png-1.2.9
$ gem install fssm                        ; fssm-0.2.10
$ gem install sass                         ; sass-3.2.14

$ gem install compass --pre         ; 升級到最新的版本 Compass 1.0.0.alpha.17

安裝完成後，查看版本信息，輸入命令

$ compass -v

提示以下版本信息，則說明安裝成功。

Compass 1.0.0.alpha.17

Copyright (c) 2008-2014 Chris Eppstein

Released under the MIT License.

Compass is charityware.

Please make a tax deductable donation for a worthy cause: http://umdf.org/compass