Rails 3: Model.all => NoMethodError: undefined method 'accept' for nil:NilClass

Question

I\'m trying to build a Rails app around a pre-existing MySQL database. I created the rails project, set up the database.yml file properly and created one model, User, to cor

Answer 1

I had similar problem with MySQL after upgrading to rails 3.2.2.

This is what I did to fix it.

rvm gem install mysql2
In GemFile remove old MySQL gem and add - gem ‘mysql2' 
bundle install
bundle update activerecord-mysql2-adapter
bundle update mysql2

then restart your rails server.