CrystalGuo0312

Results 2 issues of CrystalGuo0312

![image](https://user-images.githubusercontent.com/37615060/160579786-c2d0d04f-88ee-4592-bdab-c761261f98ed.png)

hi, I want to run "Training Span Detector" -- "python -m allennlp.run train configs/train_span.json --include-package nrl -s {$SAVE_DIRECTORY}" . But the issue below has appeared. Can you help me solve...