未捕获的TypeError：无法调用未定义的方法’noConflict’
我试图在SalesForce中使用javascript和jquery创建一个小部件，我遇到了一个错误： 未捕获的TypeError：无法调用未定义的方法’noConflict’
下面是我正在使用的代码
(function() { // Localize jQuery variable var $j; /******** Load jQuery if not present *********/ if (window.jQuery === undefined || window.jQuery.fn.jquery !== '1.4.2') { var script_tag = document.createElement('script'); script_tag.setAttribute("type","text/javascript"); script_tag.setAttribute("src", "https://ap1.salesforce.com/resource/go/jquery.min.js"); if (script_tag.readyState) { script_tag.onreadystatechange = function () { // For old versions of IE if (this.readyState == 'complete' || this.readyState == 'loaded') { scriptLoadHandler(); } }; } else { script_tag.onload = scriptLoadHandler; } // Try to find the head, otherwise default to the documentElement (document.getElementsByTagName("head")[0] || document.documentElement).appendChild(script_tag); } else { // The jQuery version on the window is the one we want to use $j = window.jQuery; main(); } /******** Called once jQuery has loaded ******/ function scriptLoadHandler() { // Restore $ and window.jQuery to their previous values and store the // new jQuery in our local jQuery variable $j = window.jQuery.noConflict(true); // Call our main function main(); } /******** Our main function ********/ function main() { $j(document).ready(function($) { /******* Load CSS *******/ var css_link = $("", { rel: "stylesheet", type: "text/css", href: "style.css" }); css_link.appendTo('head'); /******* Load HTML *******/ var jsonp_url = "http://al.smeuh.org/cgi-bin/webwidget_tutorial.py?callback=?"; $.getJSON(jsonp_url, function(data) { $('#example-widget-container').html("This data comes from another server: " + data.html); }); }); } })(); // We call our anonymous function immediately 在浏览器控制台中，ERROR指向scriptLoadHandler函数的第一行。
声明本地jquery变量如下：
//Localize jQuery variable var $j = jQuery.noConflict();