error with mse

[mattinjersey]

'mse' requires Deep Learning Toolbox.

Error in sample.features.FitnessEvaluator/EvaluateIndividual (line 45)
current_mse = mse(errors);

Error in fsf.ga.FitnessEvaluator/EvaluatePopulation (line 43)
currentIndividual.Fitness = this.EvaluateIndividual(currentIndividual);

Error in fsf.ga.GeneticAlgorithm/Execute (line 46)
this.FitnessEvaluator.EvaluatePopulation(stepPopulation);

Error in sample.feature_selection_with_Genetic_Algorithm (line 49)
gaResult = ga.Execute();