problems to configure snmp traps with sensu


I am a new user to configure sensu.

I was configured to get snmp like a cpu linux with check_snmp and works fine!

Now I am trying to configure snmp traps and I tried to configure cloudant/sensutrapd and warmfusion/sensu-extension-snmptrap

but in the both cases dont work!

Only works with snmp with snmptt and one script send message to sensu-client by nc in the port 3030

Have some step by step guide to configure snmptraps with two projects above? can you help me?