Rails服務器錯誤，mysql

Question

我是RoR編程的新手。 在簡單的RoR項目上嘗試啟動webrick Web服務器時，在提示命令行中鍵入以下代碼時遇到錯誤：

“ rails服務器”

我收到此錯誤：

C:\Users\dell\sites\simple_cms>rails s
C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/mysql2/mysql2.
rb:2:in `require': 126:The specified module could not be found.  - C:/Ruby193/lib/ruby/gems/1.9
.1/gems/mysql2-0.3.11-x86-mingw32/lib/mysql2/1.9/mysql2.so (LoadError)
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2/mysql2.rb:2:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2.rb:9:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2.rb:9:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:68:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:68:in `block (2 levels) in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:66:in `each'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:66:in `block in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:55:in `each'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runti
me.rb:55:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler.rb:12
8:in `require'
        from C:/Users/dell/sites/simple_cms/config/application.rb:7:in `<top (re
quired)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/comman
ds.rb:53:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/comman
ds.rb:53:in `block in <top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/comman
ds.rb:50:in `tap'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/comman
ds.rb:50:in `<top (required)>'
        from script/rails:6:in `require'
        from script/rails:6:in `<main>'

我從這里（和許多其他地方）嘗試了該解決方案： Ruby mysql2錯誤 http://railsforum.com/viewtopic.php?id=50501 ，它們沒有起作用。

我的細節：

windows 7 64 bit
mysql  Ver 14.14 Distrib 5.5.28, for Win64 (x86)
ruby 1.9.3p327 (2012-11-10) [i386-mingw32]
Rails 3.2.9
gem 1.8.24

Answer 1

借助於以下鏈接，提示命令：“ rails server”再次運行：

http://blog.mmediasys.com/2011/07/07/installing-mysql-on-windows-7-x64-and-using-ruby-with-it/

這對於在Windows 7 X64上正確安裝mysql和rails很有幫助。

Answer 2

您需要從MySql安裝目錄復制libmysql.dll並將其粘貼到ruby193 / bin ...。