Why doesn't gulp-connect livereload work?

Question

HTML

Nivkakuyu does not want to work livereload. I freaked out, inserted an example from the page of the gulp-connect plugin itself, nothing too.

var gulp = require('gulp'),
  connect = require('gulp-connect');

gulp.task('connect', function() {
  connect.server({
    root: 'dev',
    livereload: true
  });
});

gulp.task('html', function () {
  gulp.src('./dev/*.html')
    .pipe(connect.reload());
});

gulp.task('watch', function () {
  gulp.watch(['./dev/*.html'], ['html']);
});

gulp.task('default', ['connect', 'watch']);

I suspect that the problem was when installing modules - when stopping the execution of the watch through ctrl + c to the beginning of the line.

As a result, this ubuntu bug was not noticed immediately and I puzzled for an hour why the watch does not beat off events)
But transferring the json file + npm install they didn’t give anything, except for a new problem with the fact that some plugins refused to be installed without sudo ... (before that, in the first project, I also had to install with via sudo, perhaps precisely because of the bug with the terminal shown above)