nnabla_cli command is failed.

[Juan Acevedo]

I uploaded my own datasets using grayscale 1 channel 224 x 224 images. When I try to train a resnet model, I keep getting this error:

2018-12-28 23:53:11,033 [worker]: [INFO]: download: 11978/configurations/38007/data.sdcproj to work/data.sdcproj

2018-12-28 23:53:11,575 [worker]: [INFO]: sdeep_console_cli_util create_prototxt -i "/home/nnabla/work/data.sdcproj" -o "/home/nnabla/work/network.prototxt"

2018-12-28 23:53:11,756 [worker]: [INFO]: sdeep_console_cli_util create_result_ini -i "/home/nnabla/work/data.sdcproj" -y "/home/nnabla/empty_monitoring_report.yml" -o "/home/nnabla/work/result.ini"

2018-12-28 23:53:11,898 [worker]: [INFO]: nnabla_cli train -c /home/nnabla/work/network.prototxt -o /home/nnabla/results -s /home/nnabla/work/data.sdcproj

2018-12-28 23:53:13,070 [nnabla]: Train with contexts ['cpu']

2018-12-28 23:53:13,131 [nnabla]: Training epoch 1 of 10 begin

2018-12-28 23:53:52,338 [worker]: [ERROR]: nnabla_cli command is failed.

2018-12-28 23:53:53,784 [worker]: [INFO]: worker done

Any ideas?