问题描述
我的 cap生产部署在Ubuntu 12.04机器上的nokogiri安装上失败：
My cap production deploy is failing on nokogiri installation on an Ubuntu 12.04 box:
DEBUG [6f355ce8] Extracting libxml2-2.8.0.tar.gz into tmp//ports/libxml2/2.8.0... OK
DEBUG [6f355ce8] Running 'configure' for libxml2 2.8.0... ERROR, review 'tmp//ports/libxml2/2.8.0/configure.log' to see what happened.
DEBUG [6f355ce8] *** extconf.rb failed ***
DEBUG [6f355ce8] Make sure that `gem install nokogiri -v '1.6.1'` succeeds before bundling.
我检查了上述日志，并提到没有找到C编译器。我试图在nokogiri网站上安装ubuntu的依赖项，系统说它们已经安装。
I checked said logs and it mentions not finding a C compiler. I tried to install the dependencies for ubuntu on the nokogiri site and the system says they are already installed.
我还尝试了 gem在服务器上安装nokogiri -v'1.6.1'并成功完成，没有任何问题，宝石列表显示它已安装在服务器上。
I also tried gem install nokogiri -v '1.6.1' on the server and it succeeds with no issues, gem list shows it installed on the server.
我发现了一个类似的问题，建议将此行添加到production.rb
I found a similar question that suggested adding this line to the production.rb
set：bundle_env_variables，{'NOKOGIRI_USE_SYSTEM_LIBRARIES'=> 1}
将错误更改为更具体：
DEBUG [1e93b004] /usr/local/rbenv/versions/2.0.0-p247/lib/ruby/2.0.0/mkmf.rb:430:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
DEBUG [1e93b004] You have to install development tools first.
但是尝试通过以下方式安装它们：
But trying to install them via:
sudo apt-get install libxslt-dev libxml2-dev
表示所有内容均已安装-再次， nokogiri在 deploy 任务之外可以很好地安装。
says everything is already installed --and again, nokogiri installs fine outside of the deploy task.
推荐答案
我不见了Ubuntu的ruby开发依赖项之一： http://nokogiri.org/tutorials/installing_nokogiri.html
I was missing one of the ruby dev dependencies for ubuntu: http://nokogiri.org/tutorials/installing_nokogiri.html
另外，由于某种原因，该服务器仅授予 root 权限来访问某些nokogiri依赖项，我不得不 chmod 给我的部署用户。
Also, for some reason this server only gave root permissions to access some of the nokogiri dependencies, I had to chmod them for my deploy user.
这篇关于capistrano deploy无法安装nokogiri的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！