OperationalError: no such table: entries

I am learning flask framework and was following the flask tutorial. I have followed every step of this tutorial line-by-line. In the end I am getting the error "sqlite3.OperationalError OperationalError: no such table: entries". I am on linux machine and have never used sqlite before. I dont know how to tackle this problem. And the code of flaskr.py is here below ``` # all the imports import os import sqlite3 from flask import Flask, request, session, g, redirect, url_for, abort, render_template, flash # create our little application :) app = Flask(__name__) app.config.from_object(__name__) # Load default config and override config from an environment variable app.config.update(dict( DATABASE=os.path.join(app.root_path, 'flaskr.db'), DEBUG=True, SECRET_KEY='development key', USERNAME='admin', PASSWORD='default' )) app.config.from_envvar('FLASKR_SETTINGS', silent=True) def connect_db(): # """Connects to the specific database.""" rv = sqlite3.connect(app.config['DATABASE']) rv.row_factory = sqlite3.Row return rv def init_db(): with app.app_context(): db = get_db() with app.open_resource('schema.sql', mode='r') as f: db.cursor().executescript(f.read()) db.commit() def get_db(): #"""Opens a new database connection if there is none yet for the current application context.""" if not hasattr(g, 'sqlite_db'): g.sqlite_db = connect_db() return g.sqlite_db @app.teardown_appcontext def close_db(error): #"""Closes the database again at the end of the request.""" if hasattr(g, 'sqlite_db'): g.sqlite_db.close() @app.route('/') def show_entries(): db = get_db() cur = db.execute('select title, text from entries order by id desc') entries = cur.fetchall() return render_template('show_entries.html', entries=entries) @app.route('/add', methods=['POST']) def add_entry(): if not session.get('logged_in'): abort(401) db = get_db() db.execute('insert into entries (title, text) values (?, ?)', [request.form['title'], request.form['text']]) db.commit() flash('New entry was successfully posted') return redirect(url_for('show_entries')) @app.route('/login', methods=['GET', 'POST']) def login(): error = None if request.method == 'POST': if request.form['username'] != app.config['USERNAME']: error = 'Invalid username' elif request.form['password'] != app.config['PASSWORD']: error = 'Invalid password' else: session['logged_in'] = True flash('You were logged in') return redirect(url_for('show_entries')) return render_template('login.html', error=error) @app.route('/logout') def logout(): session.pop('logged_in', None) flash('You were logged out') return redirect(url_for('show_entries')) if __name__ == '__main__': app.run() ```