Voluptuous is down

[xingqiu774]

Traceback (most recent call last):
File "/content/kohya-trainer/train_network_xl_wrapper.py", line 2, in
from sdxl_train_network import setup_parser, SdxlNetworkTrainer
File "/content/kohya-trainer/sdxl_train_network.py", line 4, in
import train_network
File "/content/kohya-trainer/train_network.py", line 23, in
import library.config_util as config_util
File "/content/kohya-trainer/library/config_util.py", line 21, in
import voluptuous

ModuleNotFoundError: No module named 'voluptuous'