NameError: global name 'layer' is not defined

[NJUSTghw]

Quantize the kernel weight:
Traceback (most recent call last):
File "caffe-int8-convert-tool-dev.py", line 575, in
main()
File "caffe-int8-convert-tool-dev.py", line 561, in main
weight_quantize(net, net_file, group_on)
File "caffe-int8-convert-tool-dev.py", line 386, in weight_quantize
kernel_size = layer.convolution_param.kernel_size[0]
NameError: global name 'layer' is not defined

how to address this question? please