我正在尝试安装mysql 2.8.1 gem.我将使用它在Ubuntu 10.04上构建Rails 2.0.2应用程序.我会使用Ruby 1.8.7.我已经安装了开发依赖项(其他宝石).由于某些原因,我无法安装它.我无法弄清楚如何修复它.请帮忙!!
我尝试安装时在终端中获得以下内容:
mohnish@pc146724-desktop:~/Downloads$ sudo gem install mysql-2.8.1.gem
Building native extensions. This could take a while...
ERROR: Error installing mysql-2.8.1.gem:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.8 extconf.rb
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... yes
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... …我在 Windows 8.1 机器上安装 mysql2 gem 时遇到了一些问题。我按照这篇文章中的说明进行操作：
安装mysql2gem，我没有收到任何错误消息。
我跟着这个
bundle install
命令，并确认安装了以下 gems（使用 bundle show），确认我安装了以下 gems：
Using devise (3.2.2)
Using mysql2 (0.3.14)
然后我尝试这样做：
rails generate devise:install
这就是我得到的：
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14/lib/mysql2.rb:8:in `require': 126: The specified module could not be found.
- C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14/lib/mysql2/mysql2.so (LoadError)
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14/lib/mysql2.rb:8:in `<top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:76:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:72:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:72:in `block in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:61:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler/runtime.rb:61:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.5.1/lib/bundler.rb:131:in `require' …