Rake abgebrochen! NoMethodError: nicht definierte Methode bei der Migration auf Rails 4.0

Question

I on Rails-Anwendung Migration von 3.2.13 bis 4.0.0 arbeitete, bevor die Anwendung ausgeführt wird, ich brauche eine Seed-Datei auszuführen:

seeds.rb

# This file should contain all the record creation needed to seed the database with its default values. 
# The data can then be loaded with the rake db:seed (or created alongside the db with db:setup). 
# 
# Examples: 
# 
# cities = City.create([{ :name => 'Chicago' }, { :name => 'Copenhagen' }]) 
# Mayor.create(:name => 'Daley', :city => cities.first) 

# Create subscription plans 
    SubscriptionPlan.find_or_create_by_name(name: "free", amount: 0.00, renewal_period: 1, trial_period: 30, description: 'Free Plan') 
    SubscriptionPlan.find_or_create_by_name(name: "year", amount: 149.00, renewal_period: 12, trial_period: 30, description: "Year Plan") 

Dies ist die Tabelle:

create_table "subscription_plans", :force => true do |t| 
     t.string "name" 
     t.decimal "amount",   :precision => 10, :scale => 2 
     t.integer "renewal_period",        :default => 1 
     t.integer "trial_period",         :default => 1 
     t.text  "description" 
end 

Während rake db ausgeführt wird: Samen, das ist der Fehler, den ich einen Fehler in der aktuellen Version immer bin, wo es in früheren versi in Ordnung ist auf. Fehler:

rake aborted! NoMethodError: undefined method `trial_interval' for 
#<SubscriptionPlan:0x0000000622b0b8> Did you mean? trial_period /home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:436:in 
`method_missing' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/attribute_methods.rb:131:in 
`method_missing' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validator.rb:151:in `block in validate' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validator.rb:150:in `each' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validator.rb:150:in `validate' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:283:in 
`_callback_before_39' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:407:in 
`_run__3876620741187521333__validate__callbacks' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:80:in 
`run_callbacks' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validations.rb:373:in `run_validations!' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validations/callbacks.rb:106:in 
`block in run_validations!' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:373:in 
`_run__3876620741187521333__validation__callbacks' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:80:in 
`run_callbacks' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validations/callbacks.rb:106:in 
`run_validations!' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activemodel-4.0.0/lib/active_model/validations.rb:314:in `valid?' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/validations.rb:70:in 
`valid?' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/validations.rb:77:in 
`perform_validations' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/validations.rb:51:in 
`save' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/attribute_methods/dirty.rb:32:in 
`save' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:270:in 
`block (2 levels) in save' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:326:in 
`block in with_transaction_returning_status' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in 
`block in transaction' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:210:in 
`within_new_transaction' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in 
`transaction' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:209:in 
`transaction' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:323:in 
`with_transaction_returning_status' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:270:in 
`block in save' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:281:in 
`rollback_active_record_state!' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/transactions.rb:269:in 
`save' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/protected_attributes-1.0.3/lib/active_record/mass_assignment_security/persistence.rb:46:in `create' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/relation.rb:121:in 
`block in create' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/relation.rb:270:in 
`scoping' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/relation.rb:121:in 
`create' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-deprecated_finders-1.0.4/lib/active_record/deprecated_finders/dynamic_matchers.rb:141:in `dispatch' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/dynamic_matchers.rb:67:in 
`find_or_create_by_name' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/dynamic_matchers.rb:20:in 
`method_missing' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/attr_encrypted-1.2.1/lib/attr_encrypted/adapters/active_record.rb:50:in 
`method_missing_with_attr_encrypted' 
/home/abc/Desktop/Proj2/db/seeds.rb:10:in `<top (required)>' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in 
`load' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in 
`block in load' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in 
`load_dependency' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in 
`load' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/railties-4.0.0/lib/rails/engine.rb:540:in 
`load_seed' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/tasks/database_tasks.rb:153:in 
`load_seed' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/activerecord-4.0.0/lib/active_record/railties/databases.rake:181:in 
`block (2 levels) in <top (required)>' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/gems/rake-11.2.2/exe/rake:27:in 
`<top (required)>' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/bin/ruby_executable_hooks:15:in 
`eval' 
/home/abc/.rvm/gems/ruby-2.3.0@proj/bin/ruby_executable_hooks:15:in 
`<main>' Tasks: TOP => db:seed (See full trace by running task with 
--trace) 

Ich weiß nicht, woher dieses trial_interval kam. Ich habe die gesamte Anwendung durchsucht. Bitte hilf mir.

Answer 1

nur find_or_create_by_name ändern in Schienen 4