Getting an error about ir_measures

[yiyaxiaozhi]

I have downloaded the ir_measures==0.2.1,when I run the following command:
scripts/pipeline.sh config/bert config/robust
an error message is occurred:

Could you tell me how to fix it? Thanks

[yiyaxiaozhi]

I observe that all metrics in config files are lowercase like p@20 and ndcg, after chang it to capital like P@20 and NDCG. The Error is gone.