NAV 2013 Debugger Problem ?

Hi,
while i am trying to debug in Nav 2013 then getting the Error Message Like this:


Microsoft Dynamics NAV

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The control add-in on control Code Viewer on page Debugger Code Viewer has not been instantiated.

Page View - Debugger - Waiting for break... must close.

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OK

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Kindly help me . ](*,)

Regards,
Muthusubramanian.M