Problem to decode a pcap file

[brunobutter]

Hi, i'm a infrastructure analyst and i'm trying to decode a .pcap file into a fix file, but i got this error:

the pcap file is dumped like this:

tcpdump -ni eth0 -s0 "ip multicast" -w data.pcap

InterpretApplication -t /etc/ufh/BVMF-templates-PUMA.xml -pcap data.pcap -ofix
Warning: ignoring 1 truncated packets.

It's not really an error, but nothing happens.
Anyone can help-me with this?

Thanks