ActiveRecord::AssociationTypeMismatch when attempting to save nested attributes in Rails

Question

I read through a lot of pages on `has_one relationships and nested attributes but haven\'t been successful in making this work. Any help would be fantastic.

Each Use

Answer 1

Incase someone else is having the same issue, I resolved this by changing:

<%= f.fields_for @network do |fn| %> to <%= f.fields_for :network do |fn| %> and removing :network as an accessible attribute from the user model.