安裝mysql2 gem

Question

我嘗試安裝mysql 2 gem以開始構建我的Rails應用程序。 我有Rails 4.0.4和Ruby 1.9.3p545。 經過幾天的努力，我一直遇到相同的錯誤。 我嘗試再次安裝mysql 32位版本，以確保使用正確的接口安裝正確的版本，將libmysql.dll和libmysql.lib移至ruby / bin文件夾，並嘗試了其他幾種使其在線運行的方法。 他們都沒有為我工作。 以下是我所擁有的。 我將不勝感激任何允許我最終安裝mysql2 gem的幫助。

PS C:\Users\pc> gem install mysql2 --no-rdoc --no-ri -- '--with-mysql-lib="C:\Program Files\MySQL\
.6\lib\" --with-mysql-include="C:\Program Files\MySQL\MySQL Server 5.6\include\"'
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-mysql-lib=C:\Program Files\MySQL\MySQL Server 5.6\lib" --with-mys
Program Files\MySQL\MySQL Server 5.6\include"'
This could take a while...
ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

    C:/Ruby193/bin/ruby.exe extconf.rb --with-mysql-lib=C:\Program Files\MySQL\MySQL Server 5.6\lib" --wit
e=C:\Program Files\MySQL\MySQL Server 5.6\include"
checking for ruby/thread.h... no
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:/Ruby193/bin/ruby
        --with-mysql-dir
        --without-mysql-dir
        --with-mysql-include
        --without-mysql-include=${mysql-dir}/include
        --with-mysql-lib=${mysql-dir}/lib
        --with-mysql-config
        --without-mysql-config
        --with-mysql-dir
        --without-mysql-dir
        --with-mysql-include
        --without-mysql-include=${mysql-dir}/include
        --with-mysql-lib=${mysql-dir}/lib
        --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

extconf failed, exit code 1

Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.16 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/mysql2-0.3.16/gem_make.out 

Answer 1

我們在此處編寫了有關如何執行此操作的教程

-

您所做的事情有幾個問題：

1. 路徑中不能有空格
2. 您需要包括最新版本的MYSQL C連接器

這對我們有用：

• 下載最新的32位版本的MYSQL C連接器
• 安裝到沒有空格的路徑中

• 使用以下命令：

  gem install mysql2 --platform=ruby -- '--with-mysql-dir=”C:\\mysql-connector-path”'

這應該正確安裝