无法安装mysql2

Question

我尝试使用以下命令安装mysql

gem install mysql2 -v '0.3.18'

但是，我得到了以下错误

    Fetching: mysql2-0.3.18.gem (100%)
    Building native extensions.  This could take a while...
    ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

        /home/jophy/.rvm/rubies/ruby-2.2.1/bin/ruby -r ./siteconf20170221-7481-38xom2.rb extconf.rb

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.

当我打开mkmf.log时，可以找到以下错误：

/usr/bin/ld: cannot find -lmysqlclient
collect2: error: ld returned 1 exit status

Answer 1

正如@steeldriver在他的评论中提到的那样，您需要安装libmysqlclient-dev包，这是所有当前支持的Ubuntu版本都可以使用的Ubuntu，可以通过Z校精确地安装，也可以通过软件中心安装，也可以通过命令sudo apt-get install libmysqlclient-dev从CLI (终端)安装。

资料来源：

无法安装mysql2 2

https://stackoverflow.com/questions/27832120/error-error-installing-mysql2-error-failed-to-build-gem-native-extension