报错

[JJun-Guo]

steps/make_mfcc.sh: [info]: no segments file exists: assuming wav.scp indexed by utterance.
run.pl: 8 / 8 failed, log is in exp/make_mfcc/make_mfcc_train.*.log

您好，执行脚本之后，报这个错是因为什么呢？