After using STM32CubeMX (4.20.1) to use LwIP 2.0 with UDP, TCP and HTTP successfully I try to use SNMP and enable SNMP. After code generation, compiling in SW4STM32 (1.13) fails with many attributes in some structures are signaled as unresolved in etharp.c, netif.c, udp.c and snmp_mib2_ip.c what is lacking ?
Of course index has been rebuild, project clean and rebuilt. It seems that a parameter is not correct somewhere. What can cause such a fail ?