在 Rubymine 中，Rails 无法加载 'uglifier' gem
In Rubymine, Rails fails to load 'uglifier' gem
我在运行从Ruby我的Rails时遇到问题无法使用下面的堆栈加载 uglifier gem。请注意 Node.js 安装在我的 Windows 7 计算机上。
从 cmd.exe，'rails s' 运行良好：Web 应用程序启动。
来自Ruby我的 运行按钮，默认配置，我得到错误：
"C:\Program Files (x86)\JetBrains\RubyMine 8.0.2\bin\runnerw.exe" C:\tools\languages\RailsInstaller\Ruby2.2.0\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load([=13=]=ARGV.shift) C:/projects/perso/exercises/bin/rails server -b 127.0.0.1 -p 3000 -e development
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
from C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
from C:/projects/perso/exercises/bin/rails:4:in `require'
from C:/projects/perso/exercises/bin/rails:4:in `<top (required)>'
from -e:1:in `load'
from -e:1:in `<main>'
Process finished with exit code 1
我从 Ruby我的 终端得到同样的错误。
这是关于我的环境的一些信息（cmd.exe 和 RubyMine 的相同输出）：
>rails --version
Rails 4.2.6
>node --version
v0.10.22
>ruby --version
ruby 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]
Ruby 是使用 Rails Installer 在 [=100= 上安装的] 7台电脑。
Node.js 也安装了，使用官方安装程序。
Ruby我的8.0.4（终极版，不知道有没有社区版）
我怀疑 Ruby 我的 里面有环境问题，其中 rails/捆绑器/gem/?不能 "see" Node.js，其中 cmd.exe 可以。
我认为错误是在我尝试启动 RubyMine 调试模式时开始的。
知道如何解决这个问题吗？
谢谢
编辑：更多信息
我的 Gemfile :
source 'https://rubygems.org'
gem 'rails', '4.2.6'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
gem 'bcrypt', '~> 3.1.7'
group :development, :test do
gem 'byebug'
end
group :development do
gem 'web-console', '~> 2.0'
end
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
rake tasks（例如要获取完整的错误堆栈，请注意 ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime.）
>rake tasks --trace
rake aborted!
Bundler::GemRequireError: There was an error while trying to load the gem 'uglifier'.
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/projects/perso/exercises/Rakefile:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:689:in `raw_load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:94:in `block in load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:93:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:77:in `block in run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:75:in `run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/bin/rake:33:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `<main>'
ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes.
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs/runtimes.rb:48:in `autodetect'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs.rb:5:in `<module:ExecJS>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs.rb:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/uglifier-3.0.0/lib/uglifier.rb:5:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/uglifier-3.0.0/lib/uglifier.rb:5:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:77:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:77:in `block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/projects/perso/exercises/Rakefile:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:689:in `raw_load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:94:in `block in load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:93:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:77:in `block in run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:75:in `run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/bin/rake:33:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `<main>'
检查你的 Gemfile 是否有以下 gem
gem 'uglifier'
如果你已经在 Gemfile 中安装了 gem，那么 运行 bundle install 并检查 bundle 是否在安装 uglifier gem.
我终于让它工作了，如果其他人有同样的问题，这里是上下文和解决方案。
我定义了一个用户范围的 Path 变量，它引用我的系统 Path 作为：
%Path%;C:\tools\…
在 RedMine 中，这个 %Path% 不再被解释（不知道为什么）。我通过输入 RubyMine 终端看到它：
echo %Path%
结果显示的是“%Path%”，而不是其内容。
我只是重新启动计算机就解决了这个问题。
我遇到了同样的问题，但我的解决方案并不那么简单！
我有一个 运行 配置，其中字段 "Environment variables" 设置为 PATH=d:\opt\curl-7.40.0-devel-mingw64\bin\;%PATH%;=。但是，当我单击此字段右侧的“...”时，在值列中显示 d:\opt\curl-7.40.0-devel-mingw64\bin\;%PATH%" (without the "=" at the end).
我更改了它，以便它包含 node.exe
的路径
PATH=d:\opt\curl-7.40.0-devel-mingw64\bin\;d:\opt\nodejs\;%PATH%;
现在可以正常使用了。
我 运行 ruby 2.2.3-x64 和 Rails 4.2.5 在 Windows 10 机器上。
我在运行从Ruby我的Rails时遇到问题无法使用下面的堆栈加载 uglifier gem。请注意 Node.js 安装在我的 Windows 7 计算机上。
从 cmd.exe，'rails s' 运行良好：Web 应用程序启动。
来自Ruby我的 运行按钮，默认配置，我得到错误：
"C:\Program Files (x86)\JetBrains\RubyMine 8.0.2\bin\runnerw.exe" C:\tools\languages\RailsInstaller\Ruby2.2.0\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load([=13=]=ARGV.shift) C:/projects/perso/exercises/bin/rails server -b 127.0.0.1 -p 3000 -e development
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
from C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
from C:/projects/perso/exercises/bin/rails:4:in `require'
from C:/projects/perso/exercises/bin/rails:4:in `<top (required)>'
from -e:1:in `load'
from -e:1:in `<main>'
Process finished with exit code 1
我从 Ruby我的 终端得到同样的错误。
这是关于我的环境的一些信息（cmd.exe 和 RubyMine 的相同输出）：
>rails --version
Rails 4.2.6
>node --version
v0.10.22
>ruby --version
ruby 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]
Ruby 是使用 Rails Installer 在 [=100= 上安装的] 7台电脑。 Node.js 也安装了，使用官方安装程序。 Ruby我的8.0.4（终极版，不知道有没有社区版）
我怀疑 Ruby 我的 里面有环境问题，其中 rails/捆绑器/gem/?不能 "see" Node.js，其中 cmd.exe 可以。
我认为错误是在我尝试启动 RubyMine 调试模式时开始的。
知道如何解决这个问题吗？
谢谢
编辑：更多信息
我的 Gemfile :
source 'https://rubygems.org'
gem 'rails', '4.2.6'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
gem 'bcrypt', '~> 3.1.7'
group :development, :test do
gem 'byebug'
end
group :development do
gem 'web-console', '~> 2.0'
end
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
rake tasks（例如要获取完整的错误堆栈，请注意 ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime.）
>rake tasks --trace
rake aborted!
Bundler::GemRequireError: There was an error while trying to load the gem 'uglifier'.
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/projects/perso/exercises/Rakefile:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:689:in `raw_load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:94:in `block in load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:93:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:77:in `block in run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:75:in `run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/bin/rake:33:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `<main>'
ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes.
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs/runtimes.rb:48:in `autodetect'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs.rb:5:in `<module:ExecJS>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/execjs-2.6.0/lib/execjs.rb:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/uglifier-3.0.0/lib/uglifier.rb:5:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/uglifier-3.0.0/lib/uglifier.rb:5:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:77:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:77:in `block (2 levels) in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
C:/projects/perso/exercises/config/application.rb:7:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
C:/projects/perso/exercises/Rakefile:4:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:689:in `raw_load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:94:in `block in load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:93:in `load_rakefile'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:77:in `block in run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:75:in `run'
C:/tools/languages/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-11.1.2/bin/rake:33:in `<top (required)>'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `load'
C:/tools/languages/RailsInstaller/Ruby2.2.0/bin/rake:23:in `<main>'
检查你的 Gemfile 是否有以下 gem
gem 'uglifier'
如果你已经在 Gemfile 中安装了 gem，那么 运行 bundle install 并检查 bundle 是否在安装 uglifier gem.
我终于让它工作了，如果其他人有同样的问题，这里是上下文和解决方案。
我定义了一个用户范围的 Path 变量，它引用我的系统 Path 作为：
%Path%;C:\tools\…
在 RedMine 中，这个 %Path% 不再被解释（不知道为什么）。我通过输入 RubyMine 终端看到它：
echo %Path%
结果显示的是“%Path%”，而不是其内容。
我只是重新启动计算机就解决了这个问题。
我遇到了同样的问题，但我的解决方案并不那么简单！
我有一个 运行 配置，其中字段 "Environment variables" 设置为 PATH=d:\opt\curl-7.40.0-devel-mingw64\bin\;%PATH%;=。但是，当我单击此字段右侧的“...”时，在值列中显示 d:\opt\curl-7.40.0-devel-mingw64\bin\;%PATH%" (without the "=" at the end).
我更改了它，以便它包含 node.exe
PATH=d:\opt\curl-7.40.0-devel-mingw64\bin\;d:\opt\nodejs\;%PATH%;
现在可以正常使用了。
我 运行 ruby 2.2.3-x64 和 Rails 4.2.5 在 Windows 10 机器上。