Gulp + browser-sync doesn't work: 'Cannot GET /' - gulp

I am learning the front-end build system currently gulp, i want to use brower-sync and the problem is when it brings up the browser it will not display my html file and it will say "Cannot GET /" error in the browser window. This is my index.js code. Help me 🙏
Thanks :)
import gulp from 'gulp';
import rename from 'gulp-rename';
import sass from 'gulp-sass';
import twig from 'gulp-twig';
import browserSync from 'browser-sync';
gulp.task('style', () => {
console.log('execute sass file');
return gulp.src('src/assets/scss/styles.scss')
.pipe(rename('css/styles.css'))
.pipe(gulp.dest('dist'));
});
gulp.task('index', () => {
console.log('execute twig');
return gulp.src('src/markup/index.twig')
.pipe(rename('html/index.html'))
.pipe(gulp.dest('dist/html'))
});
gulp.task('twig', function() {
return gulp.src('src/markup/*.twig')
.pipe(twig())
.pipe(gulp.dest('dist/html'))
.pipe(browserSync.reload({
stream: true
}))
});
gulp.task('sass', function () {
return gulp.src('src/assets/scss/*.scss')
.pipe(sass())
.pipe(gulp.dest('dist/css'))
.pipe(browserSync.reload({
stream: true
}))
});
gulp.task('watch', function(done) {
gulp.watch('src/assets/scss/**/*.scss', gulp.task('default'));
gulp.watch('src/markup/index.twig', gulp.task('twig'));
console.log('task twig and sass works');
done();
});
gulp.task('browser-sync', () => {
browserSync.init({
server: {
baseDir: 'dist/',
browser:"google chrome",
open: true,
}
});
});
gulp.task('start', gulp.parallel('browser-sync','twig', 'sass', 'watch'));

Related

Can't serialize tasks with gulp.series()

Only the first function passed to gulp.series() does fire, the rest just don't. Below is my (simplified) gulpfile.js:
gulp.task('sass', function() {
...
});
gulp.task('js', function() {
...
});
gulp.task('images', function() {
...
});
gulp.task('browserSync', function() {
browserSync.init({
proxy: 'http://127.0.0.1/protection/',
})
})
gulp.task('watch', gulp.series('browserSync', 'js', 'sass', function() {
gulp.watch('../assets/styles/**/*.scss',['sass']);
gulp.watch('../**/**/*.php', browserSync.reload);
gulp.watch('../assets/scripts/*.js', ['js']);
gulp.watch('../*.html', browserSync.reload);
}));
What am I doing wrong?
gulp.task('browserSync', function(done) {
browserSync.init({
proxy: 'http://127.0.0.1/protection/',
})
done();
})
And all other tasks either:
gulp.task('images', function() {
reurn gulp.src()...
});
or
gulp.task('images', function(done) {
...
done();
});
gulp.task('watch', gulp.series('browserSync', 'js', 'sass', function() {
gulp.watch('../assets/styles/**/*.scss', gulp.series('sass'));
gulp.watch('../**/**/*.php', browserSync.reload);
gulp.watch('../assets/scripts/*.js', gulp.series('js'));
gulp.watch('../*.html', browserSync.reload);
}));
gulp.watch('../assets/styles/**/*.scss', 'sass');
might work as well since you are only calling one function/task. I usually just future-proof it a bit with the gulp.series('sass') way of doing it it.
Gulp v4 expects a function (hence your error message) as the second parameter to gulp.watch instead of the gulp v3 array of tasks old parameter.

error: gulp.start is not a function while using gulp version 4

Iam using gulp CLI version: 2.2.1 Local version: 4.0.2
The node version is 12.16.3
MY code of gulpfile.js is
'use strict';
var gulp = require('gulp'),
sass = require('gulp-sass'),
browserSync = require('browser-sync'),
del=require('del'),
imagemin = require('gulp-imagemin'),
uglify = require('gulp-uglify'),
usemin = require('gulp-usemin'),
rev = require('gulp-rev'),
cleanCss = require('gulp-clean-css'),
flatmap = require('gulp-flatmap'),
htmlmin = require('gulp-htmlmin');
gulp.task('sass', function () {
return gulp.src('./css/*.scss')
.pipe(sass().on('error', sass.logError))
.pipe(gulp.dest('./css'));
});
gulp.task('sass:watch', function () {
gulp.watch('./css/*.scss', ['sass']);
});
gulp.task('browser-sync', function () {
var files = [
'./*.html',
'./css/*.css',
'./img/*.{png,jpg,gif}',
'./js/*.js'
];
browserSync.init(files, {
server: {
baseDir: "./"
}
});
});
// Default task
gulp.task('default', gulp.series('browser-sync', function() {
gulp.start('sass:watch');
}));
gulp.task('clean', function() {
return del(['dist']);
});
gulp.task('copyfonts', function() {
gulp.src('./node_modules/font-awesome/fonts/**/*.{ttf,woff,eof,svg}*')
.pipe(gulp.dest('./dist/fonts'));
});
gulp.task('imagemin', function() {
return gulp.src('img/*.{png,jpg,gif}')
.pipe(imagemin({ optimizationLevel: 3, progressive: true, interlaced: true }))
.pipe(gulp.dest('dist/img'));
});
gulp.task('usemin', function() {
return gulp.src('./*.html')
.pipe(flatmap(function(stream, file){
return stream
.pipe(usemin({
css: [ rev() ],
html: [ function() { return htmlmin({ collapseWhitespace: true })} ],
js: [ uglify(), rev() ],
inlinejs: [ uglify() ],
inlinecss: [ cleanCss(), 'concat' ]
}))
}))
.pipe(gulp.dest('dist/'));
});
gulp.task('build',gulp.series('clean', function() {
gulp.start('copyfonts','imagemin','usemin');
}));
The error I got is after running gulp build on the command line is:
[15:38:33] Starting 'build'...
[15:38:33] Starting 'clean'...
[15:38:33] Finished 'clean' after 69 ms
[15:38:33] Starting '<anonymous>'...
[15:38:33] '<anonymous>' errored after 3.57 ms
[15:38:33] TypeError: gulp.start is not a function
at C:\Users\HARIKA\Desktop\bootstrapassign1\Bootstrap4\conFusion\gulpfile.js
:74:10
[15:38:33] 'build' errored after 83 m
I dont know how to solve the erros. I even changed some of tasks to gulp.series() as per version of gulp version 4. Can anyone help me to resolve the error? Thank you in advance.
Replace these two tasks:
// Default task
gulp.task('default', gulp.series('browser-sync', function() {
gulp.start('sass:watch');
}));
gulp.task('build',gulp.series('clean', function() {
gulp.start('copyfonts','imagemin','usemin');
}));
with:
// Default task
gulp.task('default', gulp.series('browser-sync', 'sass:watch'));
gulp.task('build',gulp.series('clean', 'copyfonts','imagemin','usemin'));
gulp.start is not a part of gulp4+ - it was in v3 although not really sanctioned for use even there.
I had the same issue and perhaps found the solution:
Replace the following:
gulp.task('sass:watch', function () {
gulp.watch('./css/*.scss', ['sass']);
// Default task
gulp.task('default', gulp.series('browser-sync', function() {
gulp.start('sass:watch');
}));
And add instead:
gulp.task('sass:watch', function() {
gulp.watch('./css/*.scss', gulp.series(['sass']));
// Default task
gulp.task('default', gulp.parallel('browser-sync', 'sass:watch'));
From what I have found you will have to use gulp.series and gulp.parallel interchangeably with gulp +4.x
Now for the second part change:
gulp.task('copyfonts', function() {
gulp.src('./node_modules/font-awesome/fonts/**/*.{ttf,woff,eof,svg}*')
.pipe(gulp.dest('./dist/fonts'));
});
Adding return here:
gulp.task('copyfonts', function() {
return gulp.src('./node_modules/font-awesome/fonts/**/*.{ttf,woff,eof,svg}*')
.pipe(gulp.dest('./dist/fonts'));
});
And like shown in the previous answer make the last task:
gulp.task('build', gulp.series('clean','copyfonts','imagemin','usemin'));
Hope this helps!

gulp.less import not working when change imported less

Web page is updated when I change the file which is imported in main.less, but styles from imported less file don't change in completed main.min.css
--gulpfile.js--
gulp.task('browser-sync', function() {
browsersync({
proxy: "nika.local",
notify: false
})
});
gulp.task('styles', function() {
return gulp.src('app/less/**/*.less')
.pipe(less())
.pipe(rename({ suffix: '.min', prefix : '' }))
.pipe(autoprefixer(['last 15 versions']))
.pipe(gulp.dest('app/css'))
.pipe(browsersync.reload( {stream: true} ))
});
gulp.task('watch', ['styles', 'js', 'browser-sync'], function() {
gulp.watch('app/less/**/*.less', ['styles']);
});
gulp.task('default', ['watch']);
--main.less--
//main.less
#import url("block/home-page.less");

Gulp compile less files and minify them

I'm new in the use of task runners like Gulp or Grunt, I have chosen to use Gulp to automate my tasks because I'm familiar with Javascript language.
I succeeded to compile my .less files to .css, I even wrote a task to minify my .css files.
I would like to run watch task with BrowSync, which automatically compile .less files to .css and .css to .min.css.
Here's my code :
gulp.task('minifyCSS', () => {
return gulp.src([
'web/assets/css/*.css',
'!web/assets/css/*.min.css'
])
.pipe(sourcemaps.init())
.pipe(cleanCSS())
.pipe(sourcemaps.write())
.pipe(rename({ suffix: '.min'}))
.pipe(gulp.dest('web/assets/css'));});
gulp.task('less', () => {
return gulp.src('web/assets/less/*.less')
.pipe(less())
.pipe(gulp.dest('web/assets/css'))
.pipe(browserSync.reload({
stream: true
}));});
gulp.task('watchSync', ['less', 'minifyCSS', 'browserSync'] , () => {
gulp.watch('web/assets/less/*.less', ['less']);
});
gulp.task('browserSync', () => {
browserSync.init({
notify: false,
browser: "chrome",
proxy: "localhost/web/app_dev.php",
open: false
});});
The browserSync task runs well but it never compiles .css to .min.css. But when I run "gulp minifyCSS" it does the job ...
Do I miss a step ? Can anyone help me on this one ? :)
I'm nearly sure this will work:
gulp.task('minifyCSS', ['less'], () => {
return gulp.src([
'web/assets/css/*.css',
'!web/assets/css/*.min.css'
])
.pipe(sourcemaps.init())
.pipe(cleanCSS())
.pipe(sourcemaps.write())
.pipe(rename({ suffix: '.min'}))
.pipe(gulp.dest('web/assets/css'))
.pipe(browserSync.reload({
stream: true
}))
;
});
gulp.task('less', () => {
return gulp.src('web/assets/less/*.less')
.pipe(less())
.pipe(gulp.dest('web/assets/css'))
;
});
gulp.task('watchSync', ['minifyCSS', 'browserSync'] , () => {
gulp.watch('web/assets/less/*.less', ['minifyCSS']);
});
gulp.task('browserSync', () => {
browserSync.init({
notify: false,
browser: "chrome",
proxy: "localhost/web/app_dev.php",
open: false
});
});

Gulp-connect shows an error 'listen EADDRINUSE'

I have a simple gulpfile.js:
var gulp = require('gulp');
var sass = require('gulp-sass');
var connect = require('gulp-connect');
var imagemin = require('gulp-imagemin');
var notify = require("gulp-notify");
var pngquant = require('imagemin-pngquant');
gulp.task('connect', function() {
connect.server({
root: ['./'],
livereload: true
});
});
gulp.task('sass', function() {
gulp.src(['css/**/*.scss'])
.pipe(sass({
errLogToConsole: false,
onError: function(err) {
return notify().write(err);
}
}))
.pipe(gulp.dest('build'))
.pipe(notify({ message: 'Styles task complete' }))
.pipe(connect.reload());
})
gulp.task('imagemin', function () {
return gulp.src('src/images/*')
.pipe(imagemin({
progressive: true,
svgoPlugins: [{removeViewBox: false}],
use: [pngquant()]
}))
.pipe(gulp.dest('build/images/'));
});
gulp.task('default', function() {
gulp.run('connect', 'sass', 'imagemin');
gulp.watch('css/**', function(event) {
gulp.run('sass');
gulp.run('connect');
})
gulp.watch('*.html', function(event) {
gulp.run('connect');
})
gulp.watch('src/images/*', function(event) {
gulp.run('imagemin');
})
})
gulp.task('start', ['connect']);
Livereload server works fine. However, when I try to edit scss or index.html files I'm getting the following error:
events.js:72
throw er; // Unhandled 'error'
^
Error: listen EADDRINUSE
at errnoException (net.js:904:11)
at Server._listen2 (net.js:1042:14)
at listen (net.js:1064:10)
at Server.listen (net.js:1138:5)
at ConnectApp.server (C:\xampp\htdo
ex.js:57:19)
at new ConnectApp (C:\xampp\htdocs\
js:37:10)
at Object.module.exports.server (C:
connect\index.js:170:12)
at Gulp.gulp.task.gulp.src.pipe.pip
smi2.0\gulpfile.js:10:11)
at module.exports (C:\xampp\htdocs\
rchestrator\lib\runTask.js:34:7)
at Gulp.Orchestrator._runTask (C:\x
de_modules\orchestrator\index.js:273:3)
Whithout gulp-connect everything works fine. I'm sure there is a small syntax error in gulpfile.js but I'm unable to find it. Please help to solve this out.
Here is a final gulpgile.js that works just fine thanx to #Rigotti:
var gulp = require('gulp');
var sass = require('gulp-sass');
var connect = require('gulp-connect');
var imagemin = require('gulp-imagemin');
var notify = require("gulp-notify");
var pngquant = require('imagemin-pngquant');
gulp.task('connect', function() {
connect.server({
root: ['./'],
livereload: true
});
});
gulp.task('sass', function() {
gulp.src(['css/**/*.scss'])
.pipe(sass({
errLogToConsole: false,
onError: function(err) {
return notify().write(err);
}
}))
.pipe(gulp.dest('build'))
.pipe(notify({ message: 'Styles task complete' }))
.pipe(connect.reload());
})
gulp.task('imagemin', function () {
return gulp.src('src/images/*')
.pipe(imagemin({
progressive: true,
svgoPlugins: [{removeViewBox: false}],
use: [pngquant()]
}))
.pipe(gulp.dest('build/images/'));
});
gulp.task('html', function () {
gulp.src('index.html')
.pipe(connect.reload());
});
gulp.task('default', function() {
gulp.run('connect', 'sass', 'imagemin');
gulp.watch('css/**', function(event) {
gulp.run('sass');
})
gulp.watch('*.html', function(event) {
gulp.run('html');
})
gulp.watch('src/images/*', function(event) {
gulp.run('imagemin');
})
})
gulp.task('start', ['connect']);
EADDRINUSE means that the port is already in use.
On the code below you're calling the connect task in default, but connect it's called again when you change your .sass files.
gulp.task('default', function() {
// server started
gulp.run('connect', 'sass', 'imagemin');
gulp.watch('css/**', function(event) {
gulp.run('sass');
gulp.run('connect'); // <-- problem! connect is already running!
});
...
So you're basically trying to listen to the same port you're using, giving you this error.
Remove the gulp.run('connect') inside the watchs and you're good to go.