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我刚刚设置了一个 VPS 来准备启动 Rails 应用程序，并且在实际的远程服务器上，我创建了一个新的 rails 项目来测试它，只做rails new blog -d postgresql. 然后我尝试使用该rails s命令启动服务器并得到以下错误。

.rvm/gems/ruby-1.9.3-p429@anwalt/gems/execjs-1.4.0/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/execjs-1.4.0/lib/execjs.rb:5:in `<module:ExecJS>'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/execjs-1.4.0/lib/execjs.rb:4:in `<top (required)>'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/uglifier-2.1.1/lib/uglifier.rb:3:in `require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/uglifier-2.1.1/lib/uglifier.rb:3:in `<top (required)>'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /home/michael/blogy/config/application.rb:7:in `<top (required)>'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `require'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `block in <top (required)>'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `tap'
    from /home/michael/.rvm/gems/ruby-1.9.3-p429@anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

我安装了$ gem install execjs但仍然遇到同样的错误（我想我必须在某个地方需要它）。无论如何，我的问题是，为什么该rails s命令不能像在本地机器上那样在开箱即用的 VPS 上工作，而且，如果不使用rails s命令，一旦我启动了我的真实应用程序，我应该如何启动应用程序？应用程序（而不是这个虚拟应用程序）。

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1 回答 1

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尝试通过安装node.js，apt-get install nodejs或者sudo apt-get install nodejs如果您使用的是 debian\ubuntu。

于 2013-06-08T22:54:32.950 回答