Gulp BrowserSync and npm start - gulp

Question

I'd like to start my NodeJS application using BrowserSync but it seems not working.
Error message : Error: listen EADDRINUSE
Edit #1:
I found this way to resolve my issue.
gulp.task('sync', ['start', 'watch'], function(cb) {
browserSync.init({
files: ['**/*'],
proxy: 'http://localhost:3000',
port: 4000
});
});
gulp.task('start', function() {
var called = false;
return nodemon({
script: './bin/www',
watch: ['Application.js']
}).on('start', function onStart() {
if (!called) {
cb();
}
called = true;
}).on('restart', function onRestart() {
setTimeout(function reload() {
browserSync.reload({
stream: false
});
}, 500);
});
});

Answer 1

EADDRINUSE means that the port number which listen() tries to bind the server to is already in use. So, in your case, there must be running a server on port 80 already. If you have another webserver running on this port you will get the EADDRINUSE error.
var gulp = require('gulp');
var browserSync = require('browser-sync');
var nodemon = require('gulp-nodemon');
gulp.task('default', ['browser-sync'], function () {
});
gulp.task('browser-sync', ['nodemon'], function() {
browserSync.init(null, {
proxy: "http://localhost:5000",
files: ["**/*.*"],
browser: "google chrome",
port: 7000,
});
});
gulp.task('nodemon', function (cb) {
nodemon({
script: './bin/www/app.js'
})
.on('start', function () {
cb();
})
.on('error', function(err) {
// Make sure failure causes gulp to exit
throw err;
});
});
Hope it helps :)