安装mysql2 gem时出错(windows 8)

Question

我目前正在尝试在Windows 8平台上安装mysql2 gem.我已经安装了mysql_connector并使用下面的代码.但似乎仍然得到同样的错误.我应该采取什么步骤来解决这个问题.

  C:\Users\Samuel>gem install mysql2
  Temporarily enhancing PATH to include DevKit...
  Building native extensions.  This could take a while...
  ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

 C:/Ruby200-x64/bin/ruby.exe extconf.rb
 checking for ruby/thread.h... yes
 checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
 checking for rb_thread_blocking_region()... yes
 checking for rb_wait_for_single_fd()... yes
 checking for rb_hash_dup()... yes
 checking for rb_intern3()... yes
 checking for mysql_query() in -lmysqlclient... no
 checking for main() in -lm... yes
 checking for mysql_query() in -lmysqlclient... no
 checking for main() in -lz... no
 checking for mysql_query() in -lmysqlclient... no
 checking for main() in -lsocket... no
 checking for mysql_query() in -lmysqlclient... no
 checking for main() in -lnsl... no
 checking for mysql_query() in -lmysqlclient... no
 checking for main() in -lmygcc... no
 checking for mysql_query() in -lmysqlclient... 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
    --without-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=C:/Ruby200-x64/bin/ruby
    --with-mysql-dir
    --without-mysql-dir
    --with-mysql-include
    --without-mysql-include=${mysql-dir}/include
    --with-mysql-lib
    --without-mysql-lib=${mysql-dir}/
    --with-mysql-config
    --without-mysql-config
    --with-mysql-dir
    --without-mysql-dir
    --with-mysql-include
    --without-mysql-include=${mysql-dir}/include
    --with-mysql-lib
    --without-mysql-lib=${mysql-dir}/
    --with-mysqlclientlib
    --without-mysqlclientlib
    --with-mlib
    --without-mlib
    --with-mysqlclientlib
    --without-mysqlclientlib
    --with-zlib
    --without-zlib
    --with-mysqlclientlib
    --without-mysqlclientlib
    --with-socketlib
    --without-socketlib
    --with-mysqlclientlib
    --without-mysqlclientlib
    --with-nsllib
    --without-nsllib
    --with-mysqlclientlib
    --without-mysqlclientlib
    --with-mygcclib
    --without-mygcclib
    --with-mysqlclientlib
    --without-mysqlclientlib

 Gem files will remain installed in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql
 2-0.3.14 for inspection.
 Results logged to C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14/ext/mysq
 l2/gem_make.out

Answer 1

从这里下载32位Zip Archive of connector .然后将其复制到C驱动器的根目录以便于访问,以便连接器文件夹路径将是这样的

C:\mysql-connector-c-6.1.3-win32\

现在将这行代码复制到cmd并执行(记得用你的代码更改连接器版本号)

gem install mysql2 --platform=ruby -- '--with-mysql-dir="C:/mysql-connector-c-6.1.3-win32/"'

经过很长一段时间的努力,我以这种方式在我的32位和64位Windows 7中成功安装了mysql2 gem.干杯!