Changed the DangerousAttributeError exception message to include messaging that the conflict could be because of a conflicting attribute.

1 files changed, 1 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index 36d0d63c71..f4a4e3f605 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -111,7 +111,7 @@ module ActiveRecord
       #   # => false
       def instance_method_already_implemented?(method_name)
         if dangerous_attribute_method?(method_name)
-          raise DangerousAttributeError, "#{method_name} is defined by Active Record"
+          raise DangerousAttributeError, "#{method_name} is defined by Active Record. Check to make sure that you don't have an attribute or method with the same name."
         end
 
         if superclass == Base