Grunt compression js reported an error.

  node.js, question

The picture is wrong, but my file inside does not have the attribute of subarray. As a beginner of grunt, I still need expert advice.
图片描述

The Great Spirit Appears, Online, etc.Gruntfile.js

module.exports = function (grunt) {
 //Build Task Configuration
 grunt.initConfig({
 
 //Read the contents of package.json to form json data
 pkg: grunt.file.readJSON('package.json'),
 
 //compressed js
 uglify: {
 //File header output information
 options: {
 mangle: false,
 banner: '/*!  < percentage = pkg.name percentage > < percentage = grunt.template.today ("yyy-mm-DD") percentage > */\n',
 preserveComments: 'false'
 },
 my_target: {
 files: [
 bracket
 expand: true,
 //Relative Path
 cwd: 'webapp/js',
 src: '*.js',
 dest: 'build/js',
 rename: function (dest, src) {
 var folder = src.substring(0, src.lastIndexOf('/'));
 var filename = src.substring(src.lastIndexOf('/'), src.length);
 //  var filename=src;
 filename = filename.substring(0, filename.lastIndexOf('.'));
 Var fileresult=filename plus'. min.js';
 Grunt.log.writeln ("Now Process File:" Add src Plus "Processed File:" Add fileresult ");
 return fileresult;
 //return filename plus'. min.js';
 bracket
 bracket
 bracket
 bracket
 },
 
 //compress css
 cssmin: {
 //File header output information
 options: {
 banner: '/*!  < percentage = pkg.name percentage > < percentage = grunt.template.today ("yyy-mm-DD") percentage > */\n',
 //Beautify code
 beautify: {
 //Chinese ascii, very useful!  God's Configuration to Prevent Chinese Characters from Confusing Codes
 ascii_only: true
 bracket
 },
 my_target: {
 files: [
 bracket
 expand: true,
 //Relative Path
 cwd: 'webapp/css/new',
 src: '*.css',
 dest: 'build/css/new'
 bracket
 bracket
 bracket
 bracket
 
 });
 
 //Load the specified plug-in task
 grunt.loadNpmTasks('grunt-contrib-uglify');
 grunt.loadNpmTasks('grunt-contrib-cssmin');
 
 //Tasks Performed by Default
 grunt.registerTask('default', ['uglify', 'cssmin']);
 };