é çªãéã ãã©ãrails 3.1.0ã試ãã¦ã¿ãã $ rails -v Rails 3.1.0 $ rails new myapp310 .... run bundle install ... bundle install ãå®è¡ãããã®ã $ cd myapp310 $ rails server /usr/local/ruby192p290/lib/ruby/gems/1.9.1/gems/execjs-1.2.4/lib/execjs/runtimes.rb: \ 45:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
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