jekyll发送错误:没有将nil隐式转换为String

我已经搜索了jekyll这个错误.当jekyll处理页面时,似乎发生了ruby错误,但我根本不理解ruby.

jekyll版本1.3.1

我甚至重新安装了ruby和jekyll,但结果并没有改变.

更新:
这个错误在我将jekyll从1.31降级到1.20后消失了
注意:我用jekyll 1.20创建了我的网站,所以它不能用1.3.1构建？这是核心问题吗？

E:\ GitHub\sample> jekyll serve --trace:

Configuration file: E:/GitHub/sample/_config.yml
            Source: E:/GitHub/sample
       Destination: E:/GitHub/sample/_site
      Generating... D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/page.rb:127:in `join': no implicit conversion of nil int
o String (TypeError)
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/page.rb:127:in `relative_path'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/page.rb:122:in `path'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/generators/pagination.rb:118:in `pagination_candidate?'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/generators/pagination.rb:77:in `block in template_page'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/generators/pagination.rb:76:in `select'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/generators/pagination.rb:76:in `template_page'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/generators/pagination.rb:17:in `generate'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/site.rb:229:in `block in generate'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/site.rb:228:in `each'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/site.rb:228:in `generate'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/site.rb:38:in `process'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/command.rb:18:in `process_site'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/commands/build.rb:23:in `build'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/lib/jekyll/commands/build.rb:7:in `process'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/jekyll-1.3.1/bin/jekyll:97:in `block (2 levels) in '
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/command.rb:180:in `call'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/command.rb:180:in `call'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/command.rb:155:in `run'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/runner.rb:402:in `run_active_command'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/runner.rb:78:in `run!'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/delegates.rb:7:in `run!'
        from D:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/commander-4.1.5/lib/commander/import.rb:10:in `block in '

更新测试样本
测试回购
工作从1.20到1.30完美,从1.3.1打破到1.4.3.