由于某些原因我无法安装rails：我不确定为什么nokogiri-1.7.1在这里失败是错误日志
[2017-04-11 13:44:55] local.WARNING: Error while running Command gem update --system && gem install rails —no-rdoc —no-ri && gem install bundler
[2017-04-11 13:44:55] local.ERROR: Latest version currently installed. Aborting.
Successfully installed i18n-0.8.1
Successfully installed thread_safe-0.3.6
Successfully installed tzinfo-1.2.3
Successfully installed concurrent-ruby-1.0.5
Successfully installed activesupport-5.0.2
Successfully installed rack-2.0.1
Successfully installed rack-test-0.6.3
Successfully installed mini_portile2-2.1.0
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
current directory: /var/lib/gems/2.3.0/gems/nokogiri-1.7.1/ext/nokogiri
/usr/bin/ruby2.3 -r ./siteconf20170411-1620-c4v4vi.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.3.0/gems/nokogiri-1.7.1 for inspection.
Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/nokogiri-1.7.1/gem_make.out
ERROR: While executing gem ... (URI::InvalidURIError)
URI must be ascii only "?gems=\u{2014}no-rdoc"
我已经尝试了其他各种修复方法来安装这些软件包：
utoconf bison build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm3 libgdbm-dev libxml2 libxml2-dev
似乎没有任何作用