调用ldamallet时报错

具体报错如下：
CalledProcessError: Command 'D:NM/to/mallet-2.0.8/bin/mallet import-file --preserve-case --keep-sequence --remove-stopwords --token-regex "\S+" --input C:\Users\pc\AppData\Local\Temp\5c4c74_corpus.txt --output C:\Users\pc\AppData\Local\Temp\5c4c74_corpus.mallet' returned non-zero exit status 1.
实在找不到解答，求解！

问题描述不清楚，你把代码发一下看看