Why does gulp-file-include give an error Error: Callback called multiple times when compiling?

Question

gulp.js

On the first screenshot, everything works, but on the second, when adding the @@include('./_includes/_tools.html') line, it gives an error.


gulpfile:

let project_folder = 'dist'; // собранный проект
let source_folder = '#src'; // папка с иходниками

let path = { // пути к файлам и папкам
  build: {
    html: project_folder + '/',
    css: project_folder + '/css/',
    js: project_folder + '/js/',
    img: project_folder + '/images/',
    fonts: project_folder + '/fonts/',
  },
  src: {
    html: [source_folder + '/**/*.html', '!' + source_folder + '/_**/_*.html'],
    css: [source_folder + '/scss/**/*.scss', '!' + source_folder + '/_**/*.scss'],
    js: [source_folder + '/js/**/*.js', '!' + source_folder + '/js/_**/_*.js'],
    img: source_folder + '/images/**/*.{jpg,png,svg,gif,ico,webp}',
    fonts: source_folder + '/fonts/*.*',
  },
  watch: {
    html: source_folder + '/**/*.html',
    css: source_folder + '/scss/**/*.scss',
    js: source_folder + '/js/**/*.js',
    img: source_folder + '/images/**/*.{jpg,png,svg,gif,ico,webp}',
    fonts: source_folder + '/fonts/*.*',
  },
  clean: './' + project_folder + '/'
}

// plugins
let {src, dest} = require('gulp'),
  gulp          = require('gulp'),
  babel         = require('gulp-babel'), // npm install gulp-babel --save-dev
  browsersync   = require('browser-sync').create(), // browser sync (analog live reload) (npm install browser-sync --save-dev)
  fileinclude   = require('gulp-file-include'), // file include (npm install gulp-file-include --save-dev)
  del           = require('del'), // удаления папки dist (npm install del --save-dev)
  htmlmin       = require('gulp-htmlmin'), // минифицирование файлов html, закрытие не закрытых тегов (npm install gulp-htmlmin --save-dev)
  scss          = require('gulp-sass')(require('sass')), // scss to css (npm install gulp-sass --save-dev)
  autoprefixer  = require('gulp-autoprefixer'), // автоматически ставит префексы (npm install gulp-autoprefixer --save-dev)
  cleancss      = require('gulp-clean-css'), // минифицирование файла css (npm install gulp-clean-css --save-dev)
  gcmq          = require('gulp-group-css-media-queries'), // группировка media (npm install gulp-group-css-media-queries --save-dev)
  rename        = require('gulp-rename'), // добавляет к мин.файлу суффикс .min (npm install gulp-rename --save-dev)
  uglify        = require('gulp-uglify-es').default, // минифицирование файла js (npm install gulp-uglify-es --save-dev)
  imagemin      = require('gulp-imagemin'), // минифицирование разных типов картинок (npm install gulp-imagemin --save-dev)
  webp          = require('gulp-webp'), // конвертация в современный формат картинок (npm install gulp-webp --save-dev)
  webpcss       = require('gulp-webp-css'), // автоматическое изменение css кода (npm install gulp-webp-css --save-dev)
  webphtml      = require('gulp-webp-html-nosvg'), // автоматическое изменение html кода (npm install gulp-webp-html-nosvg --save-dev)
  versionNumber = require('gulp-version-number'); // добавления к файлам css, js даты и ключа (против кеширования). (npm install gulp-version-number --save-dev)


function browserSync(params) {
  browsersync.init({
    server: {
      baseDir: './' + project_folder + '/'
    },
    host: '192.168.0.111',
    port: 3000,
    notify: false
  });
}

function html() {
  return src(path.src.html)
    .pipe(fileinclude())
    .pipe(webphtml())
    .pipe(
      htmlmin({
        collapseWhitespace: true,
        removeComments: true,
        includeAutoGeneratedTags: false
      })
    )
    .pipe(
      versionNumber({
        'value': '%DT%',
        'append': {
          'key': '_v',
          'cover': 0,
          'to': [
            'css',
            'js',
          ]
        }, 'output': {
          'file': 'version.json'
        }
      })
    )
    .pipe(dest(path.build.html))
    .pipe(browsersync.stream())
}

function css() {
  return src(path.src.css)
    .pipe(
      scss({
        outputStyle: 'expanded'
      })
    )
    .pipe(
      autoprefixer({
        overrideBrowserList: ['last 5 version'],
        cascade: true
      })
    )
    .pipe(webpcss())
    .pipe(gcmq())
    .pipe(dest(path.build.css))
    .pipe(cleancss({compatibility: 'ie8'}))
    .pipe(rename({suffix: '.min'}))
    .pipe(dest(path.build.css))
    .pipe(browsersync.stream())
}

function js() {
  return src(path.src.js)
    .pipe(fileinclude())
    .pipe(babel({
      presets: ['@babel/preset-env']
    }))
    .pipe(dest(path.build.js))
    .pipe(uglify())
    .pipe(rename({suffix: '.min'}))
    .pipe(dest(path.build.js))
    .pipe(browsersync.stream())
}

function images() {
  return src(path.src.img)
    .pipe(
      webp({
        quality: 70
      })
    )
    .pipe(dest(path.build.img))
    .pipe(src(path.src.img))
    .pipe(
      imagemin({
        progresssive: true,
        svgPlugins: [{removeView: false}],
        interlaced: true,
        optimizationLevel: 3
      })
    )
    .pipe(dest(path.build.img))
    .pipe(browsersync.stream())
}

function fonts() {
  return src(path.src.fonts)
    .pipe(dest(path.build.fonts))
    .pipe(browsersync.stream())
}

function watchFiles(params) {
  gulp.watch([path.watch.html], html);
  gulp.watch([path.watch.css], css);
  gulp.watch([path.watch.js], js);
  gulp.watch([path.watch.img], images);
  gulp.watch([path.watch.fonts], fonts);
}

function clean(params) {
  return del(path.clean);
}



let build = gulp.series(clean, gulp.parallel(html, css, js, images, fonts)); // функции которые должны будут выполнятся
let watch = gulp.parallel(build, watchFiles, browserSync);

exports.html = html;
exports.js = js;
exports.css = scss;
exports.images = images;
exports.build = build;
exports.watch = watch;
exports.default = watch;

Screenshot of the error: