A script reference cannot be included multiple times in composite script references.

Sometimes when running web pages having ajax implemented you may receive the following error message A script reference cannot be included multiple times in composite script references. The reason for this error message is you have more than one script manager in the page. So remove the extra scriptmanager controls To correct the problems please consider the following steps 1. Make sure you have only one scriptmanager in the page 2. Check the masterpage if theire is scriptmanager TACS LLC Dubai Time Attendance Dubai Access Control System Gate Barrier HRMS Solutions EID Reader Software EID Reader Building Maintanance UHF Reader Speed Gates