I am a beginner of ruby on rails. Unfortunately rails 3.0 seems to have many changes in its command line, so most of the tutorials I am reading are not updated.
Today I was trying to use mysql into my application, so I did
$ gem install mysql2
Unfortunately i get
Please install the mysql2 adapter: `gem install activerecord-mysql2-adapter` (no such file to load -- active_record/connection_adapters/mysql2_adapter)
In rails 3, a new bundle manager is being used, therefore we need to add the vim declaration in [application root]/Gemfile
Edit the Gemfile and add the following
$ gem 'mysql2','<0.3'
Save. If 'bundle' is not yet installed, do a
$ gem install bundle
first. Then update your bundles
It should fix this issue.
If you want to learn more about "bundle" go to http://gembundler.com/