build error for dartlang.org

gistfile1.txt

t-hara:dartlang t_hara$ make copy
rm -rf ./build
compass compile src/site/
unchanged src/site/scss/style.scss
cd ./src/site && jekyll --no-server --no-auto && cd ../.. && cp -R ./src/appengine/* build/
Configuration from /Users/t_hara/work/site/dartlang/src/site/_config.yml
Building site: . -> ../../build/static
Liquid Exception: uninitialized constant Albino in index.markdown
/Users/t_hara/work/site/dartlang/src/site/_plugins/pygments_cache.rb:14:in `render_pygments'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/tags/highlight.rb:44:in `render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/block.rb:94:in `block in render_all'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/block.rb:92:in `collect'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/block.rb:92:in `render_all'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/block.rb:82:in `render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/template.rb:124:in `render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/liquid-2.4.1/lib/liquid/template.rb:132:in `render!'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/convertible.rb:79:in `do_layout'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/page.rb:100:in `render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:204:in `block in render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:203:in `each'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:203:in `render'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:41:in `process'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/jekyll-0.12.0/bin/jekyll:264:in `<top (required)>'
/opt/local/bin/jekyll:23:in `load'
/opt/local/bin/jekyll:23:in `<main>'
Build Failed
make: *** [copy] Error 1
t-hara:dartlang t_hara$