Error using containers.Map/subsref,The specified key is not present in this container.

[lclin666]

When I run run_cascadercnn_voc.m, I got:
Error using containers.Map/subsref
The specified key is not present in this container.
Error in caffe.Net/blobs (line 82)
blob = self.blob_vec(self.name2blob_index(blob_name));
Error in run_cascadercnn_voc (line 125)
tmp = squeeze(net.blobs(cls_prob_blob_names{nn}).get_data());
Error in run (line 91)
evalin('caller', strcat(script, ';'));

And when I run voc_window_file.m, I got:
Error using containers.Map/values
The specified key is not present in this container.
Error in voc_window_file (line 42)
t=catsMap.values({object.class}); clsIds=[t{:}];
Error in run (line 91)
evalin('caller', strcat(script, ';'));

Have you ever seen errors like this?