NoMethodError in Statuses#index

ruby
class StatusesController < ApplicationController
  before_filter :authenticate_user!, only: [:new, :create, :edit, :update]


  before_action :set_status, only: [:show, :edit, :update, :destroy]

  # GET /statuses
  # GET /statuses.json
  def index
    @statuses = Status.all
  end

  # GET /statuses/1
  # GET /statuses/1.json
  def show
  end

  # GET /statuses/new
  def new
    @status = Status.new
  end

  # GET /statuses/1/edit
  def edit
  end

  # POST /statuses
  # POST /statuses.json
  def create
    @status = Status.new(status_params)

    respond_to do |format|
      if @status.save
        format.html { redirect_to @status, notice: 'Status was successfully created.' }
        format.json { render action: 'show', status: :created, location: @status }
      else
        format.html { render action: 'new' }
        format.json { render json: @status.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /statuses/1
  # PATCH/PUT /statuses/1.json
  def update
    respond_to do |format|
      if @status.update(status_params)
        format.html { redirect_to @status, notice: 'Status was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @status.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /statuses/1
  # DELETE /statuses/1.json
  def destroy
    @status.destroy
    respond_to do |format|
      format.html { redirect_to statuses_url }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_status
      @status = Status.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def status_params
      params.require(:status).permit(:name, :content)
    end
end

ruby
class Status < ActiveRecord::Base
    attr_accessible :content, :user_id
    belongs_to :user

    validates :content, presence: true,
                        length: { minimum: 2 }

    validates :user_id, presence: true 
end

ruby
class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable, 
  #:lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me,
                    :first_name, :last_name, :profile_name


  validates :first_name, presence: true

  validates :last_name, presence: true

  validates :profile_name, presence: true,
                            uniqueness: true,
                            format: {
                              with: /\A[a-zA-Z0-9_\-]+\z/,
                              message: 'Must be formatted correctly.'
                            }



  has_many :statuses

  def full_name
    first_name + " " + last_name
  end

end