The FIX/FAST decoder uses a template file supplied by BVMF_UMDF to describe all of the message structures on the FIX/FAST feed. The most recent template file can be downloaded from
ftp://ftp.bmf.com.br/FIXFAST/templates/.
Replace "@BVMF_UMDF_TEMPLATES_FILE@" in the transport properties with the full path to the template file.