Hi all,
I am trying to debug biztalk orchestration with no scope transaction set in 
it all are 'None' I executed the orchestration once and then open it in the 
debugger and set the breakpoint at the shape just after the Receive Now i re
posted the message so the HAT shows the orchestration in 'Started' state i r
ight clicked to go to the debugger view and tried to 'Attach' but i get the 
follwoing error.
The following error occurred when attaching to the instance:System.ArgumentN
ullException "No message was deserialized prior to calling the DispathChanne
lSink.Parameter Name : requestMsg

Anybody there who faced a similiar issue or point me out if i am doing anyth
ing wrong

TIA

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