问Gruntfile.js警告：“路径”参数必须是字符串类型。接收到的类型对象使用--继续执行强制操作

EN

"@tarekraafat/autocomplete.js": "^7.2.0"

var paths = {
    webroot: "wwwroot/"
};

// destination css path
paths.cssOutput = paths.webroot + "css";

// where to find bower resources
paths.bower_components = paths.webroot + "lib";

// where to find reset.css
paths.resetCss = paths.bower_components + "/html5-reset/assets/css";

module.exports = function (grunt) {
    "use strict";

    // Project configuration
    grunt.initConfig({
        pkg: grunt.file.readJSON("package.json"),

        clean: [paths.cssOutput, paths.bower_components],

        // copy other css files
        copy: {
            options: {
                '-W069': false,
                'reporterOutput': "",
                'esnext': true
            },
            dist: {
                expand: true, // required when using cwd
                cwd: paths.resetCss, // set working folder / root to copy
                src: ['reset.css'], // copy all files and subfolders
                dest: paths.cssOutput //'./wwwroot/css/' // destination folder
            },
            autoCompleteJS: {
                expand: true,
                cwd: "wwwroot/lib/@tarekraafat/autocomplete.js/dist/js",
                src: ['autoComplete.min.js'],
                dest: ['wwwroot/js']
            },
            autoCompleteCSS: {
                expand: true,
                cwd: "wwwroot/lib/@tarekraafat/autocomplete.js/dist/css",
                src: ['autoComplete.css'],
                dest: ['wwwroot/css']
            }
        }
    });


    // Load the plugin
    grunt.loadNpmTasks('grunt-sass');
    grunt.loadNpmTasks('grunt-contrib-clean');
    grunt.loadNpmTasks('grunt-contrib-copy');

    grunt.registerTask('downloadPkgs', ['pkg']);
    grunt.registerTask('cleanAll', ['clean']);
    grunt.registerTask('copyAll', ['copy']);

};