Undefined local variable or method for class - ruby

Question

What did I miss?
ERROR: undefined local variable or method `feedback' for #<#<Class:0x007f66dc8dca30>:0x007f66dc8cee80>
Migration:
class CreateFeedbacks < ActiveRecord::Migration
def change
create_table :feedbacks do |t|
t.references :user
t.text :body
t.timestamps
end
end
end
Model:
class Feedback < ActiveRecord::Base
attr_accessible :body, :user
belongs_to :user
end
Controller:
class FeedbacksController < ApplicationController
before_action :authenticate_user!
def index
#feedback = Feedback.all
end
def new
#feedback = Feedback.new
end
def create
#user = User.find(params[:user])
#feedback = #user.feedbacks.create(params[:feedback])
respond_to do |format|
if #feedback.save
format.html { redirect_to #user, notice 'Comment was successfully created.' }
format.json { render json: #feedback, status: :created, location: #feedback }
else
format.html { render action: "new" }
format.json { render json: #feedback.errors, status: :unprocessable_entily }
end
end
end
User model:
has_many :feedback
Routes:
resources :feedbacks
resources :users do
resources :feedbacks
end

Answer 1

Firstly, it helps a lot to style your question and code correctly as well as mark your files (routes.rb, controllers, models correctly). Else it would be very difficult for readers to understand your question and spot issues with your code. You can refer to https://meta.stackoverflow.com/editing-help for the styleguide/ markdown.
Secondly, it looks like your routes.rb are incorrect - but again, this could be due to your formatting. Based on your question, it looks like your routes are:
resources :feedbacks
resources :users do
resources :feedbacks
end
end
When it should be:
resources: users do
resources: feedbacks
end
Thirdly, your seem to have a typo in your model (feedback instead of feedbacks. That is:
class User < ActiveRecord::Base
has_many :feedbacks
end
class Feedback < ActiveRecord::Base
belongs_to :user
end
Lastly, do add specifics and what exactly you ran that caused the error. E.g. did you run something in console, what page did you load?