Help pleaseee!! :(

How do i fix the "C2065" error? it pop up when i build the hack :/ Help please?

Could you post a screenshot of it?

1>c:\users\administrator\documents\visual studio 2010\projects\dobspogs\dobspogs\main.cpp(12): error C2065: 'ADR_Playerpointer' : undeclared identifier

I'm sure that his error the undeclared identifier, same case at this http://www.mpgh.net/forum/showthread.php?t=866043