捆绑安装无法安装libxml-ruby

我是Ruby世界的新手，我需要克隆一个现有项目。

这些说明是：

source .env.development
bundle install

但是它失败了：

Using libv8 3.16.14.15
Fetching libxml-ruby 2.9.0
Installing libxml-ruby 2.9.0 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory: /Users/vlad/.rvm/gems/ruby-2.3.1/gems/libxml-ruby-2.9.0/ext/libxml
/Users/vlad/.rvm/rubies/ruby-2.3.1/bin/ruby -r ./siteconf20181109-46682-fvgifh.rb extconf.rb --use-system-libraries
checking for libxml/xmlversion.h in /opt/include/libxml2,/opt/local/include/libxml2,/usr/local/include/libxml2,/usr/include/libxml2... no
*** 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
--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=/Users/vlad/.rvm/rubies/ruby-2.3.1/bin/$(RUBY_BASE_NAME)
--with-xml2-config
--without-xml2-config
--with-xml2-dir
--without-xml2-dir
--with-xml2-include
--without-xml2-include=${xml2-dir}/include
--with-xml2-lib
--without-xml2-lib=${xml2-dir}/lib
 extconf failure: need libxml2.

    Install the library or try one of the following options to extconf.rb:

      --with-xml2-cOnfig=/path/to/xml2-config
      --with-xml2-dir=/path/to/libxml2
      --with-xml2-lib=/path/to/libxml2/lib
      --with-xml2-include=/path/to/libxml2/include


To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/vlad/.rvm/gems/ruby-2.3.1/extensions/x86_64-darwin-18/2.3.0/libxml-ruby-2.9.0/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/vlad/.rvm/gems/ruby-2.3.1/gems/libxml-ruby-2.9.0 for inspection.
Results logged to /Users/vlad/.rvm/gems/ruby-2.3.1/extensions/x86_64-darwin-18/2.3.0/libxml-ruby-2.9.0/gem_make.out

An error occurred while installing libxml-ruby (2.9.0), and Bundler cannot continue.
Make sure that `gem install libxml-ruby -v '2.9.0'` succeeds before bundling.

In Gemfile:
  upnxt_community_lib_common was resolved to 1.7.49, which depends on
    upnxt_processing_lib_document was resolved to 2.0.0, which depends on
      libxml-

如果我要执行建议的命令“ gem install libxml-ruby -v'2.9.0'”，则会出现相同的错误。

操作系统：MacOS Mojave，版本10.14。项目所需的Ruby版本：ruby 2.3.1p112（2016-04-26修订版54768）[x86_64-darwin18]

我也试过这个，但它并没有帮助。

在此先感谢您的帮助！

如果有人遇到此问题，我将在同事的帮助下解决此问题：

gem install libxml-ruby -v '2.9.0' -- --use-system-libraries --with-xml2-dir=/usr/local/Cellar/libxml2/2.9.8/include/libxml2/libxml/ --with-xml2-cOnfig=/usr/bin/xml2-config

将“ 2.9.0”替换为所需的libxml版本！

这些步骤对我有用（来源）

brew install libxml2
bundle config --global build.libxml-ruby --with-xml2-cOnfig="$(brew --prefix libxml2)/bin/xml2-config"

然后bundle install按预期工作