Question

我在RHEL7上安装了ruby等。然后我做了一个＆＃34; rails new hello_app＆＃34;。当我运行＆＃34; rails server＆＃34;时，我得到了

Warning: You're using Rubygems 2.0.14 with Spring. Upgrade to at least Rubygems 2.1.0 and run `gem pristine --all` for better startup performance.
/usr/local/share/gems/gems/abrt-0.1.0/lib/abrt.rb:6:in `require': cannot load such file -- abrt/handler (LoadError)
    from /usr/local/share/gems/gems/abrt-0.1.0/lib/abrt.rb:6:in `block in <top (required)>'
/usr/local/share/gems/gems/execjs-2.3.0/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)
    from /usr/local/share/gems/gems/execjs-2.3.0/lib/execjs.rb:5:in `<module:ExecJS>'

对execjs的github引用并不是很有用。我安装了RHEL7 js-1.8.5-17.el7.x86_64以及execjs（2.3.0）。缺少什么？

Answer 1

您需要安装nodejs

yum -y install nodejs

在ubuntu上

apt-get install nodejs

ruby on rails hello_app失败

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