问题：

解决办法：

第一步：升级gulp到4.0

npm install -g gulp-cli
npm install --save-dev gulp@4
查看gulp 版本：
gulp -v

第二步：修改gulpfile.js文件

该文件在项目的根目录

修改后的gulpfile.js
(这里直接复制一下代码，粘贴覆盖gulpfile.js里的类容！)

var gulp = require('gulp');
var $    = require('gulp-load-plugins')();
var path = require('path');
var del  = require('del');var distPath    = path.resolve('./dist');
var version     = ''; // 版本号
var versionPath = ''; // 版本号路径
var env         = process.env.npm_config_qa ? 'qa' : process.env.npm_config_uat ? 'uat' : 'prod'; // 运行环境// 创建版本号(年月日时分)
(function () {var d = new Date();var yy = d.getFullYear();var MM = d.getMonth() + 1 >= 10 ? (d.getMonth() + 1) : '0' + (d.getMonth() + 1);var DD = d.getDate() >= 10 ? d.getDate() : '0' + d.getDate();var h  = d.getHours() >= 10 ? d.getHours() : '0' + d.getHours();var mm = d.getMinutes() >= 10 ? d.getMinutes() : '0' + d.getMinutes();version = yy + MM + DD + h + mm;versionPath = distPath + '/' + version;
})();// 编译
gulp.task('build', $.shell.task([ 'node build/build.js' ]));// 创建版本号目录
gulp.task('create:versionCatalog', function () {return gulp.src(`${distPath}/static/**/*`).pipe(gulp.dest(`${versionPath}/static/`))
});// 替换${versionPath}/static/js/manifest.js window.SITE_CONFIG.cdnUrl占位变量
gulp.task('replace:cdnUrl', function () {return gulp.src(`${versionPath}/static/js/manifest.js`).pipe($.replace(new RegExp(`"${require('./config').build.assetsPublicPath}"`, 'g'), 'window.SITE_CONFIG.cdnUrl + "/"')).pipe(gulp.dest(`${versionPath}/static/js/`))
});// 替换${versionPath}/static/config/index-${env}.js window.SITE_CONFIG['version']配置变量
gulp.task('replace:version', function () {return gulp.src(`${versionPath}/static/config/index-${env}.js`).pipe($.replace(/window.SITE_CONFIG\['version'\] = '.*'/g, `window.SITE_CONFIG['version'] = '${version}'`)).pipe(gulp.dest(`${versionPath}/static/config/`))
});// 合并${versionPath}/static/config/[index-${env}, init].js 至 ${distPath}/config/index.js
gulp.task('concat:config', function () {return gulp.src([`${versionPath}/static/config/index-${env}.js`, `${versionPath}/static/config/init.js`]).pipe($.concat('index.js')).pipe(gulp.dest(`${distPath}/config/`))
});//清除, 编译 / 处理项目中产生的文件
gulp.task('cleanBuild', function () {return del([`${distPath}/static`, `${versionPath}/static/config`])
});
// 清空
gulp.task('clean', function () {return del([versionPath])
});//gulp.series|4.0 依赖
//gulp.parallel|4.0 多个依赖嵌套
gulp.task('default',gulp.series(gulp.series('build','create:versionCatalog','replace:cdnUrl','replace:version','concat:config','cleanBuild')));

第三步：最后编译打包

npm run build