What is the error? If the error is with the dataset ,where can I get it?

Answer 1

[Walter Roberson]

You are using an older version of MATLAB than the documentation you are looking at. You should look at the documentation for your release, https://www.mathworks.com/help/releases/R2018a/driving/examples/train-a-deep-learning-vehicle-detector.html . In particular, fasterRCNNVehicleTrainingData.mat

[Villa Then]

Thank you , Walter Roberson