Ruby mysql2 Error

Question

I am getting the following error

C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require\': 126: The specified module could not be foun         


        

Answer 1

I guess you are running ROR on windows. So follow these steps.

1. make sure you installed mysql correctlt.
2. copy libmysql.dll(from mysql installation directory) file into you C:/Ruby193/bin folder
3. now remove older mysql installed gems.
4. reinstall mysql gem.

This might fix your problem.

Answer 2

If you're using RVM, are you using a specific gemset?

I've had similar issues and setting specifying a specific gemset has fixed my issues. For example, I'll installed a gem, but then won't be able to load it with a require 'example_gem_name' call. This fixed my issues,

rvm gemset use gemset_name  
gem install mysql2  
gem list mysql2  

Also, to set the RVM default gemset (so you don't have to every time),

rvm use 1.9.3@gemset_name --default