Rails Rspec error "undefined method" (railsturoial Chapter 10) - ruby-on-rails

Question

I'm going through Michael Hartl's priceless tutorial and I got stuck with some Rspec errors. I've double checked everything but it seems like I'm still missing something. Here's what the error messages look like.
The thing that's bothering me the most is when I was generating the Microposts model I accidentally made a typo in one of the options so I did rails destroy model Microposts to undo the generate command before generating the model again. I'm wondering if that has anything to do with the errors I'm seeing.
I really wish to finish this tutorial ASAP so I can get on with building my own web application. ANY help would be appreciated.
Here's what my code looks like.
micropost_pages_spec.rb
require 'spec_helper'
describe "MicropostPages" do
subject {page}
let(:user) {FactoryGirl.create(:user)}
before {sign_in user}
describe "micropost creation" do
before {visit root_path}
describe "with invalid information" do
it "should not create a micropost" do
expect {click_button "Post"}.not_to change(Micropost, :count)
end
describe "error messages" do
before {click_button "Post"}
it {should have_content('error')}
end
end
end
end
microposts_controller.rb
class MicropostsController < ApplicationController
before_filter :signed_in_user, only: [:create, :destroy]
def create
#micropost = current_user.micropost.build(params[:micropost])
if #micropost.save
flash[:success] = "Micropost created!"
redirect_to root_path
else
render 'static_pages/home'
end
end
def destroy
end
end
static_pages_controller.rb
class StaticPagesController < ApplicationController
def home
#micropost = current_user.microposts.build if signed_in?
end
def help
end
def about
end
def contact
end
end
user.rb (User model)
class User < ActiveRecord::Base
attr_accessible :email, :name, :password, :password_confirmation
has_secure_password
has_many :microposts, dependent: :destroy
before_save {self.email.downcase!}
before_save :create_remember_token
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\d\-.]+\.[a-z]+\z/i
validates :name, presence: true, length: {maximum: 50}
validates :email, presence: true, format: {with: VALID_EMAIL_REGEX},
uniqueness: {case_sensitive: false}
validates :password, presence: true, length: {minimum: 6}
validates :password_confirmation, presence: true
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
end

Answer 1

The error is with this line:
#micropost = current_user.micropost.build(params[:micropost])
It should be:
#micropost = current_user.microposts.build(params[:micropost])
You're using micropost when you should be using microposts.