我在我的 linode 服务器上运行“捆绑安装”。但无法安装rubyracer的原因。捆绑安装输出是：
Installing therubyracer (0.11.0)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for main() in -lpthread... yes
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-pthreadlib
--without-pthreadlib
--enable-debug
--disable-debug
/usr/local/lib/ruby/gems/1.9.1/gems/therubyracer-0.11.0/ext/v8/build.rb:50:in `build_with_rubygem_libv8': undefined local variable or method `libv8_include_flags' for main:Object (NameError)
from extconf.rb:20:in `<main>'
Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/therubyracer-0.11.0 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/therubyracer-0.11.0/ext/v8/gem_make.out
An error occurred while installing therubyracer (0.11.0), and Bundler cannot continue.
Make sure that `gem install therubyracer -v '0.11.0'` succeeds before bundling.
实际上 gem rubyracer 已安装，但版本是 0.11.4。我只是不知道为什么它不采用这个版本并且只接受 0.11.0。
还有如何安装 0.11.0。当我运行错误“gem install therubyracer -v '0.11.0'”中给出的命令时，它无法执行并给出：
Building native extensions. This could take a while...
ERROR: Error installing therubyracer:
ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for main() in -lpthread... yes
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-pthreadlib
--without-pthreadlib
--enable-debug
--disable-debug
/usr/local/lib/ruby/gems/1.9.1/gems/therubyracer-0.11.0/ext/v8/build.rb:50:in `build_with_rubygem_libv8': undefined local variable or method `libv8_include_flags' for main:Object (NameError)
from extconf.rb:20:in `<main>'
Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/therubyracer- 0.11.0 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/therubyracer-0.11.0/ext/v8/gem_make.out
这里有人可以帮忙吗？在堆栈和 git 上搜索了很多，但没有一个给定的解决方案有效。
我的宝石文件：
source 'https://rubygems.org'
gem 'rails', '3.2.12'
gem "paperclip"
gem 'mysql2'
gem "devise"
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
gem 'libv8', '3.11.8.4', :platform => :ruby
gem 'therubyracer', '0.11.0', :platforms => :ruby
gem 'rails_admin'
gem 'unicorn'
gem 'delayed_job_active_record'
gem 'daemons'