我目前是Linux操作系统（Ubuntu）的新手。我曾经学习在Windows上开发Rails应用程序，但我发现在Linux上开发Rails应用程序更好，因为Windows有一些限制。我双启动我的电脑，所以我可以同时拥有Linux和Windows。
所以我使用RVM安装了Ruby和Rails（我遵循了这个设置：https://www.youtube.com/watch?v=hiPQynmnsiI）并创建了一个名为web的测试项目并将其放在我的桌面上。在创建项目之前没有错误，但是当我运行命令rails s时，它返回以下内容：
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler /runtime.rb:94:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)
Gem Load Error is: Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes.
Backtrace for gem load error is:
/home/arjay/.rvm/gems/ruby-2.3.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:58:in `autodetect'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/execjs-2.7.0/lib/execjs.rb:5:in `<module:ExecJS>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/execjs-2.7.0/lib/execjs.rb:4:in `<top (required)>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/uglifier-3.0.3/lib/uglifier.rb:5:in `require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/uglifier-3.0.3/lib/uglifier.rb:5:in `<top (required)>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:in `require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:in `block (2 levels) in require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in `each'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in `block in require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in `each'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in `require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler.rb:106:in `require'
/home/arjay/Desktop/web/config/application.rb:7:in `<top (required)>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:88:in `require'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:88:in `block in server'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `server'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
/home/arjay/Desktop/web/bin/rails:9:in `require'
/home/arjay/Desktop/web/bin/rails:9:in `<top (required)>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `load'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `call'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/command.rb:7:in `call'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client.rb:30:in `run'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/bin/spring:49:in `<top (required)>'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `load'
/home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `<top (required)>'
/home/arjay/Desktop/web/bin/spring:14:in `require'
/home/arjay/Desktop/web/bin/spring:14:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
Bundler Error Backtrace:
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:90:in `block (2 levels) in require'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in `each'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in `block in require'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in `each'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in `require'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.6/lib/bundler.rb:106:in `require'
from /home/arjay/Desktop/web/config/application.rb:7:in `<top (required)>'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:88:in `require'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:88:in `block in server'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `server'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
from /home/arjay/Desktop/web/bin/rails:9:in `require'
from /home/arjay/Desktop/web/bin/rails:9:in `<top (required)>'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `load'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `call'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client/command.rb:7:in `call'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/client.rb:30:in `run'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/bin/spring:49:in `<top (required)>'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `load'
from /home/arjay/.rvm/gems/ruby-2.3.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `<top (required)>'
from /home/arjay/Desktop/web/bin/spring:14:in `require'
from /home/arjay/Desktop/web/bin/spring:14:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
感谢任何可以帮助我的人！
答案 0 :(得分：3)
无法找到JavaScript运行时。
你需要javascript运行时。
解决方案1 ：运行以下命令安装 nodejs
sudo apt-get install nodejs
解决方案2：在therubyracer
Gemfile gem
gem 'therubyracer'
这将解决问题
答案 1 :(得分：3)