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POinstalling mysql2 gem errors
 

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    <p>I installed ruby and ruby gems through macport but the gem list does not include mysql2. So how would I get mysql2 gem installed inside my gem list which is inside "/opt/local/bin/gem"</p> <p>Also, what is the mysql2 gem? I have mysql gem and only want to use mysql, not really sure what it means by mysql2. It gives my a mysql2 error when I try to launch webrick on an app.</p> <p>UPDATE: I ran sudo gem install mysql2 and got the following:</p> <blockquote> <p>Building native extensions. This could take a while... Successfully installed mysql2-0.2.7 1 gem installed Installing ri documentation for mysql2-0.2.7...</p> <p>Enclosing class/module 'mMysql2' for class Client not known</p> <p>Enclosing class/module 'mMysql2' for class Result not known Installing RDoc documentation for mysql2-0.2.7...</p> <p>Enclosing class/module 'mMysql2' for class Client not known</p> <p>Enclosing class/module 'mMysql2' for class Result not known</p> </blockquote> <p>Assuming that mysql2 installed, even though the docs didn't I get the following error when I try to launch webrick in my app.</p> <p>rails server:</p> <blockquote> <p>/opt/local/lib/ruby/gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle: dlopen(/opt/local/lib/ruby/gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)<br> Referenced from: /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle Reason: image not found - /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle from /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.2.7/lib/mysql2.rb:8 from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in <code>require' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in </code>require' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in <code>each' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in </code>require' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in <code>each' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in </code>require' from /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler.rb:112:in <code>require' from /Users/summer/Sites/simple_cms/config/application.rb:7 from /opt/local/lib/ruby/gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:28:in </code>require' from /opt/local/lib/ruby/gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:28 from /opt/local/lib/ruby/gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:27:in <code>tap' from /opt/local/lib/ruby/gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:27 from script/rails:6:in</code>require' from script/rails:6</p> </blockquote>
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    1. COYou are missing libmysqlclient-dev headers try and search for that library in macports. That is what i had to install on my Ubuntu in order to install the gem.
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