Error: When using a callback like after(:create) or before(:create), Ruby raises this error:

Both value and block given (FactoryGirl::AttributeDefinitionError)

Cause: These callback syntaxes are supported from factory_girl 3.3.0 or above.

Solution:

Change after(:create) to after_create and before(:create) to before_create

Or Upgrade factory_girl to version >=3.3.0