ValueError: dictionary update sequence element #0 has length 1; 2 is required

[Shn9909]

Traceback (most recent call last):
File "/tmp/pycharm_project_354/src/evaluation/train.py", line 221, in
main()
File "/tmp/pycharm_project_354/src/evaluation/train.py", line 64, in main
arch = dict(cfg)[configuration][settings][args.search_task_id]
ValueError: dictionary update sequence element #0 has length 1; 2 is required

Process finished with exit code 1

hello，when running train, I created a new yaml file, wrote the keyword s1_cifar10 in it, and then got that error. I would like to know if it is caused by missing the original yaml file? thanks！