Errno::ENOENT: No such file or directory @ rb_sysopen - /Users/Sean/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/json-1.8.2/ext/json/ext/generator/gem_make.out
An error occurred while installing json (1.8.2), and Bundler cannot continue.
Make sure that `gem install json -v '1.8.2'` succeeds before bundling.
此行上方是从命令行生成的日志。一世 我不知道如何安装它。