Capistrano:sh:1:捆绑:找不到

Sno*_*ash 7 capistrano bundler

executing "cd /home/user/app/current/releases/20130620184147 && bundle install --gemfile /home/user/app/current/releases/20130620184147/Gemfile --path /home/user/app/current/shared/bundle --deployment --quiet --without development"

[out :: website.com] sh: 1: bundle: not found
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我无法得到这个答案: Capistrano和Bundler问题 - 捆绑:找不到

我正在使用Ubuntu LTS 12.04.