Ruby on rails rails生成设备：安装错误1

/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:94:in

rescue in block（2级）in require'：尝试加载gem“uglifier”时出错。
Gem加载错误为：找不到JavaScript运行时。看见https://github.com/rails/execjs 获取可用运行时的列表。
gem加载错误的回溯跟踪为：
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:58:in

autodetect' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/execjs-2.7.0/lib/execjs.rb:5:in

'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/execjs-2.7.0/lib/execjs.rb:4:in

' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/uglifier-3.0.3/lib/uglifier.rb:5:in

require'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/uglifier-3.0.3/lib/uglifier.rb:5:in

' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:in

require'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:in

block（2级）in require' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in

each'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in

block in require' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in

each'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in

require' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler.rb:106:in

require'
/home/leto/rubyblog/config/application.rb:7:in

' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:82:in

require'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:82:in

preload' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:143:in

service'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:131:in

block in run' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:125:in

loop'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:125:in

run' /home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application/boot.rb:19:in

'
/home/leto/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core\u ext/kernel\u require.rb:55:in

require' /home/leto/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core\u ext/kernel\u require.rb:55:in

require'
-e:1:in

' 捆绑程序错误回溯： （绑定器：：GemRequireError） from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:90:in

块（2级）in require'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in

each' 发件人/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in

block in require'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in

each' 来自/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in

require'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler.rb:106:in

require' from/home/leto/rubyblog/config/application.rb:7:in

'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:82:in

require' from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:82:in

preload'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:143:in

service' from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:131:in

block in run'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:125:in

loop' 来自/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application.rb:125:in

run'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-2.0.0/lib/spring/application/boot.rb:19:in

' from/home/leto/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core\u ext/kernel\u require.rb:55:in

require'
from/home/leto/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core\u ext/kernel\u require.rb:55:in

require'

---

from-e:1:in`

install node.js

这不是问题，只是一个错误堆栈。请安装nodejs和

gem安装uglifier

。这是丢失的一个，您的错误堆栈的确切第一行

可能重复您共享了一个错误，但不是一个问题。如需帮助，请参阅“”。在寻求调试帮助（“为什么我会出现此错误？”）时，必须包括所需的行为、特定问题或错误，以及在问题本身中重现此错误所需的最短代码。没有明确问题陈述的问题对其他读者没有用处。有关此操作的帮助，请参见“”。