Flex :: RDSDispatchServlet Is Not Available?

Nov 14, 2010

I have web.xml as follows

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>[code]....

I have downloaded blazeds3.3 and copied all the lib files my lib folder and added the above web.xml file.Then I have created the Flex 4 project with BlazeDS support. it has been created without any error. Then I have added the datagrid in the code. While using data-centric driven feature of flex 4 it is asking me username and password. I have checked "No Password Require".Then it gives me Error Like Error Executing RDS command. Status code 404, Reason: Servlet RDSDispatchServlet is not available.

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