【发布时间】：2017-05-05 02:32:45
【问题描述】：
我不小心删除了一些库（我想，不要问如何）。现在我无法安装我需要的 nokogiri 版本。我已经阅读了其他类似问题的帖子，他们的解决方案没有帮助。请看以下错误:(
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /private/var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/gems/nokogiri-1.6.1/ext/nokogiri
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby -r ./siteconf20161219-83285-voqu1e.rb extconf.rb --use-system-libraries
Extracting libxml2-2.8.0.tar.gz into tmp/x86_64-apple-darwin16.3.0/ports/libxml2/2.8.0... OK
Running 'configure' for libxml2 2.8.0... OK
Running 'compile' for libxml2 2.8.0... OK
Running 'install' for libxml2 2.8.0... OK
Activating libxml2 2.8.0 (from /private/var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/gems/nokogiri-1.6.1/ports/x86_64-apple-darwin16.3.0/libxml2/2.8.0)...
Extracting libxslt-1.1.26.tar.gz into tmp/x86_64-apple-darwin16.3.0/ports/libxslt/1.1.26... OK
Running 'configure' for libxslt 1.1.26... OK
Running 'compile' for libxslt 1.1.26... OK
Running 'install' for libxslt 1.1.26... OK
Activating libxslt 1.1.26 (from /private/var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/gems/nokogiri-1.6.1/ports/x86_64-apple-darwin16.3.0/libxslt/1.1.26)...
checking for libxml/parser.h... yes
checking for libxslt/xslt.h... yes
checking for libexslt/exslt.h... yes
checking for iconv_open() in iconv.h... no
checking for iconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... no
-----
libxml2 is missing. please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** 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.
然后是一些配置选项
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/extensions/universal-darwin-16/2.0.0/nokogiri-1.6.1/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/gems/nokogiri-1.6.1 for inspection.
Results logged to /var/folders/_w/_81xdz4n1x5_9kd3xxtqlv3w0000gn/T/bundler20161219-83285-1fnegt2nokogiri-1.6.1/extensions/universal-darwin-16/2.0.0/nokogiri-1.6.1/gem_make.out
An error occurred while installing nokogiri (1.6.1), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.1'` succeeds before bundling.
我尝试过 brew 安装 libxml2，尝试安装库等。这到底是什么？？
【问题讨论】：
-
让 nokogiri 及其依赖项工作可能会变得乏味。对于初学者，请告诉我们您的操作系统以帮助您找到库
-
例如，在我的带有 el Capitan 的 Mac 中，我必须使用
brew install libxml2 libxslt来安装系统库，然后使用捆绑程序bundle config build.nokogiri --use-system-libraries=true --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/libxml2了解更多信息，请查看 nokogiri.org/tutorials/installing_nokogiri.html
标签： ruby-on-rails ruby rubygems nokogiri