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I am getting this error after i remove update panel from the page .

Cannot unregister UpdatePanel with ID 'UpdatePanel1' since it was not registered with the ScriptManager. This might occur if the UpdatePanel was removed from the control tree and later added again, which is not supported.
Parameter name: updatePanel 

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 


What I have tried:

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
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j snooze 20-Sep-17 17:27pm    
I recommend googling that very error and trying some of the results that show up from your search.
$ultaNn 21-Sep-17 2:15am    
i tried googling . couldn't get solution for Update panel removed

1 solution

Do you have a new panel with the name Panel1? If you deleted the original and created a new Panel1 that might be the problem.
 
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