ruby – Octopress错误 – rake预览,观察或生成

sddhrthrt@thinkpad:~/octopress$rake generate
## Generating Site with Jekyll
directory source/stylesheets/ 
   create source/stylesheets/screen.css 
Configuration from /home/sddhrthrt/octopress/_config.yml
/home/sddhrthrt/octopress/plugins/pygments_code.rb:5: 
      warning: already initialized constant PYGMENTS_CACHE_DIR
/home/sddhrthrt/octopress/plugins/render_partial.rb:25:in `require':
             ./plugins/octopress_filters.rb:69: undefined (?...) sequence:
              /<div class="entry-content">(?<content>[sS]*?)</div>s*<(footer|/article)>/ (SyntaxError)
        from /home/sddhrthrt/octopress/plugins/render_partial.rb:25
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/../lib/jekyll/site.rb:76:in `require'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/../lib/jekyll/site.rb:76:in `setup'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/../lib/jekyll/site.rb:75:in `each'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/../lib/jekyll/site.rb:75:in `setup'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/../lib/jekyll/site.rb:30:in `initialize'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/jekyll:224:in `new'
        from /var/lib/gems/1.8/gems/jekyll-0.11.2/bin/jekyll:224
        from /usr/local/bin/jekyll:19:in `load'
        from /usr/local/bin/jekyll:19

和

sddhrthrt@thinkpad:~/octopress$rake preview
Starting to watch source with Jekyll and Compass. Starting Rack on port 4000
rake aborted!
undefined method `spawn' for Process:Module

Tasks: TOP => preview
(See full trace by running task with --trace)

和

sddhrthrt@thinkpad:~/octopress$rake watch
Starting to watch source with Jekyll and Compass.
rake aborted!
undefined method `spawn' for Process:Module

Tasks: TOP => watch
(See full trace by running task with --trace)

我承认,我从未参与Ruby工作.因此,我不太愿意解读错误.谷歌搜索也没有产生任何我能理解的东西.

编辑：

在答案中提到,我安装了rbenv然后安装了ruby 1.9.3-p327.我回到了?/ octopress并运行了bundle install,它说已经安装了所有宝石(当我使用ruby 1.8x时我已经完成了).现在rake给了我这个错误：

sddhrthrt@thinkpad:~/octopress$rake --trace
rake aborted!
cannot load such file -- bundler/setup
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/home/sddhrthrt/octopress/Rakefile:2:in `<top (required)>'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/rake_module.rb:25:in `load'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/rake_module.rb:25:in `load_rakefile'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:501:in `raw_load_rakefile'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:82:in `block in load_rakefile'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handling'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:81:in `load_rakefile'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:65:in `block in run'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handling'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/rake/application.rb:63:in `run'
/home/sddhrthrt/.rbenv/versions/1.9.3-p194/bin/rake:32:in `<main>'

我应该重新使用捆绑所有的宝石吗？我不明白.