Не работает сборка сайта

Есть код
const gulp = require(“gulp”);
const plumber = require(“gulp-plumber”);
const sourcemap = require(“gulp-sourcemaps”);
const sass = require(“gulp-sass”);
const postcss = require(“gulp-postcss”);
const autoprefixer = require(“autoprefixer”);
const sync = require(“browser-sync”);
const csso = require(“gulp-csso”);
const rename = require(“gulp-rename”);
const imagemin = require(“gulp-imagemin”);
const webp = require(“gulp-webp”);
const svgstore = require(“gulp-svgstore”);
const del = require(“del”);

// Styles
const clean = () => {
return del(“build”);
};
exports.clean = clean;

const copy = () => {
return gulp.src([
“source/fonts//*.{woff,woff2}",
"source/img/
”,
“source/js/**”,
“source/*.ico”
], {
base: “source”
})
.pipe(gulp.dest(“build”));
};
exports.copy = copy;

const sprite = () => {
return gulp.src(“source/img/**/icon-*.svg”)
.pipe(svgstore())
.pipe(rename(“sprite.svg”))
.pipe(gulp.dest(“build/img”))
}
exports.sprite = sprite;

const createWebp = () => {
return gulp.src(“source/img/**/*.{png,jpg}”)
.pipe(webp({quality: 90}))
.pipe(gulp.dest(“source/img”))
}
exports.webp = createWebp;

const images = () => {
return gulp.src(“source/img/**/*.{jpg,png,svg}”)
.pipe(imagemin([
imagemin.optipng({optimizationLevel: 3}),
imagemin.mozjpeg({progressive: true}),
imagemin.svgo()
]))
}
exports.images = images;

const styles = () => {
return gulp.src(“source/sass/style.scss”)
.pipe(plumber())
.pipe(sourcemap.init())
.pipe(sass())
.pipe(postcss([
autoprefixer()
]))
.pipe(csso())
.pipe(rename(“styles.min.css”))
.pipe(sourcemap.write("."))
.pipe(gulp.dest(“build/css”))
.pipe(sync.stream());
}

exports.styles = styles;

// Server

const server = (done) => {
sync.init({
server: {
baseDir: ‘build’
},
cors: true,
notify: false,
ui: false,
});
done();
}
exports.server = server;

// Watcher

const watcher = () => {
gulp.watch(“source/sass/**/.scss", gulp.series(“styles”));
gulp.watch("source/
.html”).on(“change”, sync.reload);
}

const build = gulp.series(
“clean”,
“copy”,
“sprite”
);

exports.default = gulp.series(
styles, server, watcher, clean, copy
);

И как только добавляю вот этот кусок кода
const build = gulp.series(
“clean”,
“copy”,
“sprite”
);
Сборка перестает работать.


Выбивает ошибку. Помогите пожалуйста разобраться

А что говорит наставник из академии?