正在将画布部署到服务器，当我运行命令RAILS_ENV = production bundle exec rake canvas时：compile_assets我收到错误：
LoadError: cannot load such file -- parallel
/var/www/prod/shared/bundle/ruby/1.9.1/gems/polyglot-0.3.5/lib/polyglot.rb:65:in需要＆＃39;
/var/www/prod/shared/bundle/ruby/1.9.1/gems/polyglot-0.3.5/lib/polyglot.rb:65:in require'
/var/www/prod/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:251:in阻止在需要＆＃39;
/var/www/prod/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:236:in load_dependency'
/var/www/prod/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:251:in要求＆＃39;
/var/www/prod/releases/20141215031227/lib/tasks/canvas.rake:114:in block (2 levels) in <top (required)>'
Tasks: TOP => canvas:compile_assets
检查并行gem的gem列表，检查确认bundle安装完成且没有错误。检查了gemset，权限，我还应该研究什么。
答案 0 :(得分：1)
所以我们发现捆绑器没有安装我们需要的宝石并且导致了这个问题。自从我们与Capistrano一起部署后，我们设置了set :bundle_without, "nil"。或者您可以修改配置文件以删除bundle_without行。我们运行bundle install --deployment --without test development因为我们正在部署到生产中。