'Can't POST /login' Error - Use Passport Strategies - Advanced Node

Tell us what’s happening:
It displays ‘Can’t POST /login’ athte page after sumitting the login form for this tutorial:

Advanced Node and Express - How to Use Passport Strategies

can some1 help plz?!

Your code so far
the added code at server.js :

          .post(passport.authenticate('local', { failureRedirect: '/' }),(req,res) => {

  passport.use(new LocalStrategy(
  function(username, password, done) {
    myDataBase.findOne({ username: username }, function (err, user) {
      console.log('User '+ username +' attempted to log in.');
      if (err) { return done(err); }
      if (!user) { return done(null, false); }
      if (password !== user.password) { return done(null, false); }
      return done(null, user);

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36.

Challenge: How to Use Passport Strategies

Link to the challenge:

can you give link to your full project?

i uploaded it here