Translated using Google Translate:

The original link is available in the Colab Version of the TorchVision Object Detection Finetuning Tutorial at https://github.com/pytorch/vision/tree/v0.3.0/references/detection 41.
However, after the cocoapi update, there is a bit of incompatibility, there will be a similar error from the landlord.
I put the change in the Baidu network disk below.
Link: https://pan.baidu.com/s/1DCw_ApFSVlcxqoCILLc2tg 30
Extraction code: jihx
You can try this.

@FrankZLuffy I would like to ask you to translate your posts before posting