Cannot find memory page. (MEM_Put)
Invalid index into memory channel: 0 (S_MEM_PtrInPage)
Error in accessing data from memory
The IMPEDANCE command can be issued prior to LOCATEALLOCATE. An IMPEDANCE item value is zero for one or more arcs.
Update all arcs in the NETCOVER so the values in the IMPEDANCE items are all non-zero values.
Only LOCATEALLOCATE returns an error with an IMPENDANCE of zero. Other Network commands such as PATH, TOUR and ALLOCATE will accept IMPEDANCE values of zero.