regarding the error message!!

Guevara

hi. friends I wrote udf about the heat flux. compiled it, I got the error message!! Could you anydoby help me! please! Let me know how to write actually!!

DEFINE_PROFILE(cathode, thread, index) {

face_t f;

real x[ND_ND], y, temp;

Thread *t0=thread->t0; (structure reference not implemented)

begin_f_loop(f, thread)

{

cell_t c0=F_C0(f, thread);

temp=C_T(c0,t0);

F_PROFILE(f, thread, index)=(fabs(Jc)*5*kb/(2*e))*(temp-T_cat);

}

end_f_loop(f, thread) }

thank in advance