Undefined function or variable 'batchNorm​​alization​L​ayer'.

Hi, I keep getting the following error when running the example below:

Undefined function or variable 'batchNorm​alizationL​ayer'.

The code is written as:

layers = [
    imageInputLayer([28 28 1])
    
    convolution2dLayer(3,8,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    maxPooling2dLayer(2,'Stride',2)
    
    convolution2dLayer(3,16,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    maxPooling2dLayer(2,'Stride',2)
    
    convolution2dLayer(3,32,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    fullyConnectedLayer(10)
    softmaxLayer
    classificationLayer];

I also have the neural network add-on installed so that cant be the problem.

Answer 1

[Jayanti]

The issue is arising because of different MATLAB version use.

The function “batchNorm​​alization​L​ayer” is introduced in R2017b version and since you are using R2016b it is showing error.

You can refer to the following documentation for further information and in the version history section you can check for latest updates: https://www.mathworks.com/help/deeplearning/ref/nnet.cnn.layer.batchnormalizationlayer.html#:~:text=using%20GPU%20Coder%E2%84%A2.-,Version%20History,-Introduced%20in%20R2017b