asp.net - Session.Remove(Key) Throwing null refrence exception -


i getting following error in aspx.cs page during adding 1 item in session

session["request_params"]=new hashtable();

argument exception

item has been added. key in dictionary: 'request_params' key being added: 'request_params'

but per understanding adding or updating value session never throw exception.

i using inproc session mode.

any suggestion one.


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