RuntimeError with mysql2 and rails3 (bundler)

mysql ruby-on-rails bundler
Swistak picture Swistak · Aug 12, 2010 · Viewed 63.3k times · Source

I get this error

`establish_connection': Please install the mysql2 adapter: `gem install activerecord-mysql2-adapter` (no such file to load -- active_record/connection_adapters/mysql2_adapter) (RuntimeError)
  from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activerecord-

Here is dump of whole error and my config and gemfile.

Answer

stream7 picture stream7 · May 18, 2011

I was getting the same error while using rails 3.0.7 and mysql2 0.3.2. The solution, which I found here, is to use an older version of mysql2. Thus edit your gemfile to 

gem 'mysql2', '< 0.3'

and run

bundle install

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