Why am I getting nil errors in create_time_zone_conversion_attribute? How to fix?

[GeorgeL]

Why am I getting nil errors in "create_time_zone_conversion_attribute?"

Where do I start in trying to determine how to diagnose and debug this issue?  I have been looking at it for a couple of days now and I am pretty stuck.  What should one be looking for in order to track this down?


/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods/time_zone_conversion.rb:56:in `create_time_zone_conversion_attribute?'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods/time_zone_conversion.rb:35:in `define_method_attribute='
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:287:in `block in define_attribute_method'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:280:in `each'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:280:in `define_attribute_method'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:246:in `block in define_attribute_methods'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:246:in `each'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:246:in `define_attribute_methods'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods.rb:29:in `block in define_attribute_methods'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods.rb:26:in `synchronize'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods.rb:26:in `define_attribute_methods'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods.rb:167:in `respond_to?'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_assignment.rb:44:in `rescue in _assign_attribute'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_assignment.rb:42:in `_assign_attribute'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_assignment.rb:29:in `block in assign_attributes'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_assignment.rb:23:in `each'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_assignment.rb:23:in `assign_attributes'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/core.rb:192:in `initialize'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/inheritance.rb:27:in `new'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/inheritance.rb:27:in `new'
/Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/reflection.rb:189:in `build_association'
....

Completed 500 Internal Server Error in 2939ms

NoMethodError (undefined method `save' for nil:NilClass):
  app/controllers/registrations_controller.rb:45:in `block (2 levels) in create'
  app/controllers/registrations_controller.rb:8:in `create'


Thanks!

[Colin Law]

On 27 September 2013 11:06, GeorgeL <fuzzyd...@gmail.com> wrote:
> Why am I getting nil errors in "create_time_zone_conversion_attribute?"
>
> Where do I start in trying to determine how to diagnose and debug this
> issue? I have been looking at it for a couple of days now and I am pretty
> stuck. What should one be looking for in order to track this down?
>
>
> /Users/myself/.rvm/gems/ruby-2.0.0-p247@rails4/gems/activerecord-4.0.0/lib/active_record/attribute_methods/time_zone_conversion.rb:56:in
> `create_time_zone_conversion_attribute?'

> [snip]

> NoMethodError (undefined method `save' for nil:NilClass):
> app/controllers/registrations_controller.rb:45:in `block (2 levels) in
> create'

I would start by looking at that line of code and working out why you
are trying to save something that is nil.

Colin