SMILE error -2 in function SetEvidence

[kck]

I crafted a network and it worked fine with my test data. I made the network learned using EM algorithm and error message as following was displayed after running first few lines of the test data.

"SMILE error -2 in function SetEvidence. Logged information: Outcome [inf_0_005] of node [a_b_c] is impossible"

FYI, The inf_0_005 is a discretized value.

What are the possible causes of the above error message?

[shooltz[BayesFusion]]

This message is generated when the CPT entries for inf_0_005 contain zero for current set of evidence instantiated on parents.