Error in running demo

[Raven1327]

demo

runname =

release

Time taken for computing ng at scale 1: 5.574.

Time taken for computing ng at scale 2: 1.747.
Time for full_cands_from_hiers: 1.221
Time for hole_filling: 9.599
Time for compute_base_features: 17.843
Time for mex_fast_reduction: 1.835
Time for compute_full_features: 0.011
Time for cand2labels: 0.054
Time for depth features: 4.538
Undefined function or variable 'caffe'.

Error in rcnn_load_model (line 28)
caffe('init', rcnn_model.cnn.definition_file, rcnn_model.cnn.binary_file);

Error in run_all (line 41)
rcnn_model = rcnn_load_model(rcnn_model);

Error in demo (line 6)
run_all(I, D, RD, C, out_file);

[Raven1327]

And I can't add 'caffe/matlab/+caffe/private' to Path with 'addpath(genpath('caffe/matlab'))'.