How to enable debug in ax2012?

i am a member of Microsoft Dynamics AX debugging users group. While debugging, it throws an error.

I have attached a screenshot for the same. Please find and give me suggestions.

6646.dynamicsax-debug.png

After you are added to this group, you must log off and log back on.

For more info please have look at http://technet.microsoft.com/en-us/library/aa569665.aspx

thanks.Its working now