RuntimeError with mysql2 and rails3 (bundler)

Question

I get this error

`establish_connection\': Please install the mysql2 adapter: `gem install activerecord-mysql2-adapter` (no such file to load -- active_record         


        

Answer 1

as of 0.3.0, and ActiveRecord 3.1 - the ActiveRecord adapter has been pulled out of this gem and into ActiveRecord itself. If you need to use mysql2 with Rails versions < 3.1 make sure and specify gem "mysql2", "~> 0.2.7" in your Gemfile

the missing file (no such file to load) can be found in the pre 0.3.0 versions of mysql2.

quoted from the documentation of mysql2