Rails 执行 rails server 报错 Could not find a JavaScript runtime
来源:互联网 发布:linux服务器ip怎么看 编辑:程序博客网 时间:2024/05/16 12:00
执行 rails server 报错 Could not find a JavaScript runtime · Ruby China http://ruby-china.org/topics/1605
解决办法:
1, cd 项目根目录
2, 分别安装
gem install execjs
gem install therubyracer
sudo apt-get install nodejs
小弟我初学ruby,今天部署rails环境。在debian系统上,通过rvm安装的ruby,rails,bundle。 使用rails new demo命令创建了一个名字为demo的项目,然后在demo/script目录下执行rails server命令,结果打印出了一堆错误信息。错误信息如下:
/home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/execjs-1.3.0/lib/execjs/runtimes.rb:50:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable) from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/execjs-1.3.0/lib/execjs.rb:5 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-script-2.2.0/lib/coffee_script.rb:1 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-script-2.2.0/lib/coffee-script.rb:1 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:68:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:68:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:66:in `each' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:66:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:55:in `each' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler/runtime.rb:55:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/bundler-1.0.22/lib/bundler.rb:122:in `require' from /home/xudong/ruby/work/demo/config/application.rb:7 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/railties-3.2.2/lib/rails/commands.rb:53:in `require' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/railties-3.2.2/lib/rails/commands.rb:53 from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/railties-3.2.2/lib/rails/commands.rb:50:in `tap' from /home/xudong/.rvm/gems/ruby-1.8.7-p358/gems/railties-3.2.2/lib/rails/commands.rb:50 from script/rails:6:in `require' from script/rails:6
在google上搜了一天了,有相同问题的不少,但是能解决的没有。麻烦知道解决方案的高手们,给指点一下啊。
安装 Node.js 或者其他的 Runtime https://github.com/sstephenson/execjs
非常感谢huacnlee的解答,我重新安装了execjs(通过命令gem install execjs安装),但还是没效果啊
#2楼 @Azon execjs 还需要后端才能处理,想简单解决可以加上这个 Gem
gem 'therubyracer'
感谢@Rei ,这个问题终于解决了。
sudo apt-get install nodejs
说句老实话,我推荐新手用3.0.x的版本,熟悉了再慢慢跟进最新版本。 3.2太多新东西,有点扰乱了你的学习主题。
我也觉着还是换成3.0吧,用3.2到处都在报错。也不知道换成3.0会怎么样
谢谢诸位的建议,解决了问题。采用了以下三步:
gem install execjs gem install therubyracer sudo apt-get install nodejs
遇到同样问题 用了前两步解决问题,nodejs暂时好像还用不到 gem install execjs gem install therubyracer
我安装的时候需要nodejs的,9楼的,可能你系统已经带了这个程序了吧。
解决方式是在gemfile中加入 Ruby代码
gem 'execjs'
gem 'therubyracer' 执行 bundle install 见 http://1.dale.sinaapp.com/2012/06/rails-could-not-find-a-javascript-runtime-%E9%94%99%E8%AF%AF%E7%9A%84%E8%A7%A3%E5%86%B3%E6%96%B9%E6%B3%95/
楼上正解。。。
安装nodejs最方便
我也是ruby小白,昨天在执行rails s时也遇到同样问题,刚开始是在Gemfile文件中加入: gem 'execjs' gem 'therubyracer' 然后bundle install,再去执行rails s就成功了。 后来觉得如果每次都这样搞的话就太麻烦了,所以查看了一下本地的gem包,发现execjs以及therubyracer都有了,所以就又用sudo apt-get install nodejs安装了node.js,之后去掉Gemfile里边的两个相关的gem包的代码,再一次bundle install之后就能正常运行rails s了。
参照8楼,三步确实搞定!
execjs会选择一个js解释器, therubyracer 或者 nodejs选择一个就行了 ruberacer需要在Gemfile里指定, 如果系统有nodejs,那么不需要在Gemfile里指定了
修改Gemfile,将gem 'therubyracer', platforms: :ruby
前面的#去掉即可。
修改Gemfile文件的source 'https://rubygems.org' 替换成source 'https://ruby.taobao.org'
#8楼 @architectcom nice
- Rails 执行 rails server 报错 Could not find a JavaScript runtime
- 执行 rails server 报错 Could not find a JavaScript runtime 解决办法
- 执行 rails server 报错 Could not find a JavaScript runtime
- 执行 rails server 报错 Could not find a JavaScript runtime
- ROR:rails server :Could not find a JavaScript runtime
- ROR:rails server :Could not find a JavaScript runtime
- rails server: Could not find a JavaScript runtime
- 关于rails的 Could not find a JavaScript runtime.错误
- ubuntu中Rails Server遇到Could not find a JavaScript runtime问题
- rails 3遇到 Could not find a JavaScript runtime execjs错误(ubuntu)
- rails 3遇到 Could not find a JavaScript runtime execjs错误(ubuntu)
- rails 3遇到 Could not find a JavaScript runtime execjs错误(ubuntu)
- rails 3,4遇到 Could not find a JavaScript runtime execjs错误(ubuntu)
- rails3.2 报Could not find a JavaScript runtime错误
- rails4.1.6启动报错Could not find a JavaScript runtime
- Could not find a JavaScript runtime
- 解决hello rails时Could not find a JavaScript runtime_(ExecJS::RuntimeUnavailable)问题
- rails server Could not find gem 'sqlite3-ruby (>= 0)'
- lnmp和lnmp的性能
- TeamViewer现在无法捕捉屏幕,这可能是由于快速的用户切换或远程桌面会话已经断开
- 推荐算法之 slope one 算法
- Docker Registry + redis 遇到的两个小坑
- 解决RCP中CNF(navigator)配置后delete\copy\past快捷键失效
- Rails 执行 rails server 报错 Could not find a JavaScript runtime
- java hadoop hdfs 上写文件
- 获取屏幕状态
- T123AI芯片简介
- java byte转二进制字符串
- OpenCV下载,安装,集成,开发
- 机器学习笔记-多分类学习,类别不平衡,决策树
- 上线前的最后一公里:灰度测试
- PO、VO、BO、DTO、POJO、DAO、DO之间的关系