From what I gather, you are following the MATLAB examples “Train Vision Transformer Network for Image Classification” and “View Network Behavior Using tsne” to visualise the results of the network activations of a trained vision transformer. You are encountering an error in the process.
The line of code where you are encountering the error is trying to refer to a non-existent layer, assuming you are using the MATLAB default implementation of the “visionTransformer” network. By analysing the network, we can see the layer is named “encoderblock1_mha” and not “encoderblock1_mha1”. Unless you have renamed and replaced the layer, passing the correct layer name shall eliminate the result.
I hope you find the above explanation and suggestions useful!
