点击启动训练后报错

[jundada430]

Checklist:

1. 查找历史相关issue寻求解答
2. 翻阅FAQ常见问题汇总和答疑
3. 确认bug是否在新版本里还未修复
4. 如果bug是由PaddleX API 2.0导致，且该bug在develop分支里已修复，参考FAQ Q4替换内置PaddleX API

描述问题

复现

1. This log file path is D:\paddlex_workspace\projects\P0002\T0007\err.log
   注意：标志为WARNING/INFO类的仅为警告或提示类信息，非错误信息
   Process Process-1:2:
   Traceback (most recent call last):
   File "multiprocessing\process.py", line 297, in bootstrap
   File "multiprocessing\process.py", line 99, in run
   File "paddlexui\pms\model_tasks\tasks.py", line 58, in call_paddlex_train
   File "D:\PaddleX_GUI_2.1.0_win10\paddlex_init.py", line 17, in
   from paddlex.utils.env import get_environ_info, init_parallel_env
   File "D:\PaddleX_GUI_2.1.0_win10\paddlex\utils_init.py", line 15, in
   from . import logging
   File "D:\PaddleX_GUI_2.1.0_win10\paddlex\utils\logging.py", line 21, in
   import paddle
   File "D:\PaddleX_GUI_2.1.0_win10\paddle_init_.py", line 31, in
   import paddle.dataset
   File "D:\PaddleX_GUI_2.1.0_win10\paddle\dataset_init_.py", line 25, in
   import paddle.dataset.sentiment
   File "D:\PaddleX_GUI_2.1.0_win10\paddle\dataset\sentiment.py", line 30, in
   import nltk
   ModuleNotFoundError: No module named 'nltk'

2. 2.1.0

3. win8

4. 无 用cpu训练

[dyning]

欢迎尝试使用PaddleX 新版本，https://aistudio.baidu.com/intro/paddlex