Hi,
the error indicates that within your MIB the term "caiAS400" is used, but not defined.
That means you have to compile at first the MIB defining "caiAS400".
In your MIB you should find an "caiAS400 from ..." statement which will point you to the rigth MIB.
Mapping traps with an compiled MIB is much easier but it is not really necessary.
It will also be sufficient to include the trap OID's in an AlertMap file and map them to Event codes.
Regards,
Olaf