解决国内无法使用gem

叁歲伎倆 2022-07-12 10:56 151阅读 0赞

安装 idb tool。

今天使用gem命令，出现了下面的错误：

Building native extensions.  This could take a while...
    ERROR:  Error installing idb:
            ERROR: Failed to build gem native extension.
    
        current directory: /usr/local/lib/ruby/gems/2.4.0/gems/libxml-ruby-3.0.0/ext/libxml
    /usr/local/opt/ruby/bin/ruby -r ./siteconf20170221-5409-1vufyx7.rb extconf.rb
    /usr/local/opt/ruby/bin/ruby: warning: shebang line ends with \r may cause a problem
    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=/usr/local/Cellar/ruby/2.4.0/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:
    
      /usr/local/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-15/2.4.0/libxml-ruby-3.0.0/mkmf.log
    
    extconf failed, exit code 1
    
    Gem files will remain installed in /usr/local/lib/ruby/gems/2.4.0/gems/libxml-ruby-3.0.0 for inspection.
    Results logged to /usr/local/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-15/2.4.0/libxml-ruby-3.0.0/gem_make.out

![Center][]

想了很久，Google 很久，还是没得进展。

－－－－－－－－－替换gem 默认地址－－－－－－－－－－

会想起上个os 版本，我安装swift的相关东西，需要将gem的sources更换。

国内 访问：https://rubygems.org/ 有限制。

执行下面的命令： 删除原有sources 源。

＊＊deMacBook-Air:~ $ gem sources --remove https://rubygems.org/
    https://rubygems.org/ removed from sources
    ＊＊deMacBook-Air:~ $ gem sources -a https://ruby.taobao.org/
    https://ruby.taobao.org/ added to sources

再执行安装。搞定：

[Center]: /images/20220710/f1c4c13d561d4eabb2a9680b3daae01b.png