Rails不能使用mysql生成模型 [英] Rails cannot generate model using mysql

问题描述

Windows XP安装MYSQL作为开发机器，ruby 1.9.2p290（2011-07-09）[i386-mingw32]，Rails 3.1.0
gem install mysql2 - '--with-mysql- lib =c：\Program Files\MySQL\MySQL S
erver 5.5 \lib--with-mysql-include =c：\Program Files\ MySQL \MySQL Server 5.5 \\ \\ b







$ new
rails new talk -d mysql（已成功创建一个新的rails应用程序talk）

Windows XP with installed MYSQL as a development machine, ruby 1.9.2p290 (2011-07-09) [i386-mingw32], Rails 3.1.0 gem install mysql2 -- '--with-mysql-lib="c:\Program Files\MySQL\MySQL S erver 5.5\lib" --with-mysql-include="c:\Program Files\MySQL\MySQL Server 5.5\inc lude"' (successfully installed gem mysql2) rails new talk -d mysql (successfully created a new rails app called talk)

现在问题：

C：\Sites\RP\\ \\talk> rails generate用户
错误信息：
ruby​​.exe - 无法找到组件
此应用程序无法启动，因为找不到libmysql.dll。重新安装应用程序可能会解决这个问题。
命令行错误消息：
C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/mysql2-0.3.10/lib/mysql2.rb
： 9：在 require'：126：找不到指定的模块。 - C：/ RailsInsta
ller / Ruby1.9.2 / lib / ruby​​ / gems / 1.9.1 / gems / mysql2-0.3.10 / lib / mysql2 / mysql2.so（Load
Error）
从C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/mysql2-0.3.10/
lib / mysql2.rb：9：in '
from C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18
/lib/bundler/runtime.rb:68:in require'
从C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18
/lib/bundler/runtime.rb： 68：in block（2 levels）in require'
from C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18
/lib/bundler/runtime.rb:66:in 每个'
从C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler -1.0.18
/lib/bundler/runtime.rb:66:inblock in require'
from C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems /1.9.1/gems/bundler-1.0.18
/lib/bundler/runtime.rb:55:in 每个'
从C：/RailsInstaller/Ruby1.9.2/ lib / ruby​​ / gems / 1.9.1 / gems / bundler-1.0.18
/lib/bundler/runtime.rb:55:inrequire'
从C：/ RailsInstaller / Ruby1.9.2 / lib / ruby​​ / gems / 1.9.1 / gems / bundler-1.0.18
/lib/bundler.rb:120:in require'
C：/Sites/RP/talk/config/application.rb：9：in '
从C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/ gems / railties-3.1.0
/lib/rails/commands.rb:21:in require'
从C：/RailsInstaller/Ruby1.9.2/lib/ruby/gems /1.9.1/gems/railties-3.1.0
/lib/rails/commands.rb:21:in '
从脚本/ rails：6：in require'
从脚本/ rails：6：在'

C:\Sites\RP\talk>rails generate User ERROR MESSAGE: ruby.exe-Unable to Locate Component This application has failed to start because libmysql.dll was not found. Re-installing the application may fix this problem. COMMAND LINE ERROR MESSAGE: C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/mysql2-0.3.10/lib/mysql2.rb :9:in require': 126: The specified module could not be found. - C:/RailsInsta ller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/mysql2-0.3.10/lib/mysql2/mysql2.so (Load Error) from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/mysql2-0.3.10/ lib/mysql2.rb:9:in' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:68:in require' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:68:inblock (2 levels) in require' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:66:in each' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:66:inblock in require' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:55:in each' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler/runtime.rb:55:inrequire' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.18 /lib/bundler.rb:120:in require' from C:/Sites/RP/talk/config/application.rb:9:in' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 /lib/rails/commands.rb:21:in require' from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 /lib/rails/commands.rb:21:in' from script/rails:6:in require' from script/rails:6:in'

推荐答案

http://www.ruby-forum.com/topic/150580 有答案。由于某种原因，我需要：/ / MYSQL / MySQL Server 5.5 / lib中的libmysql.dll文件，然后粘贴：

http://www.ruby-forum.com/topic/150580 has the answer. for some reason I need to:

1 / gem install mysql
2它到Ruby1.9.2 / bin

1/ gem install mysql 2/ copy the libmysql.dll file from /MYSQL/MySQL Server 5.5/lib and paste it to Ruby1.9.2/bin

之后，它是顺畅的航行...

after that, it is smooth sailing...

如果有人深入了解这背后的原因，我将非常感激。

Even though I did it, I would appreciate if anyone has an insight into the reason behind this:

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