Gulpfile.js and spritesmith: what's wrong?

Question

Sprites

I am building a project according to the article
And I wanted to add a sprite
assembly there. It turned out the following (somewhere I made a mistake when adding a task for sprites)

'use strict';

var gulp = require('gulp'),
    watch = require('gulp-watch'),
    prefixer = require('gulp-autoprefixer'),
    uglify = require('gulp-uglify'),
    less = require('gulp-less'),
    rigger = require('gulp-rigger'),
    cssmin = require('gulp-minify-css'),
    imagemin = require('gulp-imagemin'),
    pngquant = require('imagemin-pngquant'),
    rimraf = require('rimraf'),
    browserSync = require("browser-sync"),
    spritesmith = require('gulp.spritesmith'),
    reload = browserSync.reload;

var path = {
    build: {
        html: 'build/',
        js: 'build/js/',
        css: 'build/css/',
        sprite: 'build/i/',
        img: 'build/i/',
        fonts: 'build/fonts/'
    },
    src: {
        html: 'src/*.html',
        js: 'src/js/main.js',
        style: 'src/less/common.less',
        sprite: 'src/i/sprite/*.png',
        img: 'src/i/**/*.*',
        fonts: 'src/fonts/**/*.*'
    },
    watch: {
        html: 'src/**/*.html',
        js: 'src/js/**/*.js',
        style: 'src/common/**/*.less',
        sprite: 'src/i/sprite/*.png',
        img: 'src/i/**/*.*',
        fonts: 'src/fonts/**/*.*'
    },
    clean: './build'
};

var config = {
    server: {
        baseDir: "./build"
    },
    tunnel: true,
    host: 'localhost',
    port: 9000,
    logPrefix: "Frontend_Devil"
};

gulp.task('webserver', function () {
    browserSync(config);
});

gulp.task('clean', function (cb) {
    rimraf(path.clean, cb);
});

gulp.task('html:build', function () {
    gulp.src(path.src.html) 
        .pipe(rigger())
        .pipe(gulp.dest(path.build.html))
        .pipe(reload({stream: true}));
});

gulp.task('js:build', function () {
    gulp.src(path.src.js) 
        .pipe(rigger()) 
        .pipe(uglify()) 
        .pipe(gulp.dest(path.build.js))
        .pipe(reload({stream: true}));
});

gulp.task('style:build', function () {
    gulp.src(path.src.style) 
        .pipe(less({
            includePaths: ['src/less/common.less'],
            outputStyle: 'compressed',
            sourceMap: true,
            errLogToConsole: true
        }))
        .pipe(prefixer())
        .pipe(cssmin())
        .pipe(gulp.dest(path.build.css))
        .pipe(reload({stream: true}));
});

gulp.task('image:build', function () {
    gulp.src(path.src.img) 
        .pipe(imagemin({
            progressive: true,
            svgoPlugins: [{removeViewBox: false}],
            use: [pngquant()],
            interlaced: true
        }))
        .pipe(gulp.dest(path.build.img))
        .pipe(reload({stream: true}));
});

gulp.task('sprite:build', function () {
    gulp.src(path.src.sprite) 
        .pipe(spritesmith({
                imgName: 'sprite.png',
                cssName: 'sprite.less',
                cssFormat: 'less',
                algorithm: 'binary-tree',
                
                cssVarMap: function(sprite) {
                    sprite.name = 's-' + sprite.name
                }
            }))
        .pipe(gulp.dest(path.src.img))
        .pipe(gulp.dest(path.src.style))
        .pipe(reload({stream: true}));
});

gulp.task('build', [
    'html:build',
    'js:build',
    'style:build',
    'image:build',
    'sprite:build'
]);


gulp.task('watch', function(){
    watch([path.watch.html], function(event, cb) {
        gulp.start('html:build');
    });
    watch([path.watch.style], function(event, cb) {
        gulp.start('style:build');
    });
    watch([path.watch.js], function(event, cb) {
        gulp.start('js:build');
    });
    watch([path.watch.img], function(event, cb) {
        gulp.start('image:build');
    });
});


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

Gives errors with long addresses
Tell me what's wrong or can you share your assembly?

Answer 1

Show me the error. Just because it's long is no reason to hide it ;)