WebserviceProxy.invoke is null or not an Object
<p>when i execute the following script ,i'm getting Webserviceproxy is null or not an object.
if i execute the same script in another project its working fine.</p>

<p>Please tell me how to overcome from this thread.</p>

<p><code>"var webServicePath = '/Ajax1/Default.aspx';
        var webMethod = 'AjaxForDisplayingParticulars';
        Sys.Net.WebServiceProxy.invoke(webServicePath,
            webMethod, false, { SSLCNO1: 1, DistrictID: 1, UserId: 1}, onSuccess,
            OnFailed, "User Context", 1000000); "</code></p>
