Following is the error while calculating FAR FRR

Please see the attachment herewith of my program, cosine distance is calculated or not I dont understand because of following error...

Output argument "T" (and maybe others) not assigned during call to "Evaluation".

Error in DorsalHandVeinVerification (line 69)

[EvalFAR, EvalFRR, EvalEER, Thr] = Evaluation(TrainSet, gndTrain, EvalSet, gndEval, options);