View Compilation Error

0_0_38514946_12090.cpp:1:12: error: variable or field 'Prim' declared void
 void Prim( AMGraph G, char v )
            ^
0_0_38514946_12090.cpp:1:12: error: 'AMGraph' was not declared in this scope
0_0_38514946_12090.cpp:1:23: error: expected primary-expression before 'char'
 void Prim( AMGraph G, char v )
                       ^