我花了好几天试图修复这个血腥的错误但仍然不成功，我已经尝试了所有我可以在stackoverflow和其他网站上的解决方案。我已经下载并安装了nodejs，只是为了让你知道。
这是错误跟踪：
C：\ Sites \ RDB＆gt; rails s
C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-script-2.4.1/lib/cof
fee_script.rb：1：require': cannot load such file -- execjs (LoadError)
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-script-
2.4.1/lib/coffee_script.rb:1:in'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-script-
2.4.1 / lib / coffee-script.rb：1：in require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-script-
2.4.1/lib/coffee-script.rb:1:in'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-rails-4
.1.1 / lib / coffee-rails.rb：1：在require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/coffee-rails-4
.1.1/lib/coffee-rails.rb:1:in'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib / bundler / runtime.rb：76：在require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:76:in块中（2级）in require'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib / bundler / runtime.rb：72：在each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:72:in块中的require'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib / bundler / runtime.rb：61：在each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:61:in require'中
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/bundler-1.7.7/
lib / bundler.rb：133：require'
from C:/Sites/RDB/config/application.rb:11:in'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands/commands_tasks.rb:78:in require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands/commands_tasks.rb:78:in阻止服务器'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands/commands_tasks.rb:75:in tap'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands/commands_tasks.rb:75:in server'
来自C：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands/commands_tasks.rb:39:in run_command!'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.2.4
/lib/rails/commands.rb:17:in'
来自bin / rails：9：require'
from bin/rails:9:in'
答案 0 :(得分：0)
我最终这样做了，错误消失了！我觉得RailsInstaller需要提出一个解决方案，否则像我这样的初学者如果使用windows就必须面对这场噩梦
ExecJS::RuntimeError on Windows trying to follow rubytutorial
1）删除// = require_tree。 /忽略问题 - 正如ColinR上面所述，这条线不应该首先导致问题。 ExecJS在系统上运行JavaScript运行时存在实际问题，删除此行只是忽略了这一事实。