Question

我在Ubuntu服务器14.04 AWS实例中遇到了Rails 4.1.7，Phusion Passenger版本4.0.53，nginx / 1.6.2的问题，但是使用rails服务器运行良好。

error.log

App 2029 stdout：App 2029 stderr：sh：1：App 2029 stderr：env：not   发现App 2029 stderr：App 2029 stdout：[2014-11-12 16：12：26.1580   1979/7feff83f9700 Pool2 / Implementation.cpp：287]：无法生成   申请/ home / ubuntu / apps / doger的过程：发生错误   启动预加载器时。错误ID：b7381860错误详细信息   保存到：/tmp/passenger-error-SUjzpL.html来自应用程序的消息：   找不到JavaScript运行时。看到   https://github.com/sstephenson/execjs获取可用列表   运行时间。（ExecJS :: RuntimeUnavailable）
  /var/lib/gems/1.9.1/gems/execjs-2.2.2/lib/execjs/runtimes.rb:51:in   autodetect' /var/lib/gems/1.9.1/gems/execjs-2.2.2/lib/execjs.rb:5:in＆＃39;
  /var/lib/gems/1.9.1/gems/execjs-2.2.2/lib/execjs.rb:4:in <top (required)>' /var/lib/gems/1.9.1/gems/uglifier-2.5.3/lib/uglifier.rb:3:in要求＆＃39;   /var/lib/gems/1.9.1/gems/uglifier-2.5.3/lib/uglifier.rb:3:in <top (required)>' /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in要求＆＃39;
  /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in   block (2 levels) in require' /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in各＆＃39;
  /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in   block in require' /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in各＆＃39;
  /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in   require' /var/lib/gems/1.9.1/gems/bundler-1.7.6/lib/bundler.rb:133:in需要＆＃39;   /home/ubuntu/apps/doger/config/application.rb:7:in <top (required)>' /home/ubuntu/apps/doger/config/environment.rb:2:in要求＆＃39;
  /home/ubuntu/apps/doger/config/environment.rb:2:in <top (required)>' config.ru:3:in要求＆＃39; config.ru:3:in block in <main>' /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in instance_eval＆＃39;
  /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in initialize' config.ru:1:in new＆＃39; config.ru:1:in <main>' /usr/share/passenger/helper-scripts/rack-preloader.rb:112:in eval＆＃39;
  /usr/share/passenger/helper-scripts/rack-preloader.rb:112:in   preload_app' /usr/share/passenger/helper-scripts/rack-preloader.rb:158:in＆＃39;
  /usr/share/passenger/helper-scripts/rack-preloader.rb:29:in   <module:PhusionPassenger>' /usr/share/passenger/helper-scripts/rack-preloader.rb:28:in＆＃39;

[2014-11-12 16：12：26.1691 1979 / 7feff60bf700   agents / HelperAgent / RequestHandler.h：2306]：[客户端20]不能   结帐会话，因为发生了产生错误。的标识符   错误是b7381860。有关详细信息，请参阅前面的日志   错误。

的Gemfile

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.7'
# Use postgresql as the database for Active Record
gem 'pg'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
#gem 'therubyracer',  platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0',          group: :doc

# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring',        group: :development

我已经安装了nodejs（v0.10.25）

Answer 1

每次设置新的ubuntu / nginx / passenger / rails服务器时都会出现此问题。试试这个

首次安装节点：

sudo apt-get install nodejs

然后将您的路径env添加到/etc/nginx/nginx.conf中，如下所示：

env PATH;

或更具体（如果节点位于/ usr / bin / nodejs）：

env PATH=/bin:/usr/bin;

Answer 2

取消注释'therubyracer'宝石，如下所示：

gem 'therubyracer',  platforms: :ruby

并运行bundle install。我希望这会对你有所帮助。

Answer 3

我遇到了类似的问题，我的机器上已经运行了 nodejs。看了这么多，我才意识到我需要在我的 Gemfile 中包含 execjs gem：

gem "execjs", "~> 2.8.1"

然后运行 bundle install

找不到JavaScript运行时。有关可用运行时的列表，请参阅https://github.com/sstephenson/execjs

3 个答案: