Gulp Error Notifications

gistfile1.js

var plumber = require('gulp-plumber');
var gutil = require('gulp-util');

var onError = function(err) {
    gutil.beep();
    console.error("You did something wrong, NERD! " + err.message);
}

gulp.task('less', function() {
    gulp.src('app/src/less/main.less')
        .pipe(plumber({
            errorHandler: onError
        }))
        .pipe(less({
            paths: [path.join(__dirname, 'less', 'includes')],
            sourceMap: true
        }))
        .pipe(gulp.dest('app/release/styles'))
});