Sys.Forms.PageRequestManagerServerErrorException:An unknown error occured while processing the request on the server. The status code returned from the server was: 12029

Hi All,

i am new to this community.please help me getting this error solved.

i have a web project made in .NET 2.0 .i am  getting this error while submitting a simple data entry form .

Sys.Forms.PageRequestManagerServerErrorException:An unknown error occured while processing the request on the server. The status code returned from the server was: 12029

 

Thanks in advance

Neeraj Lohumi