there are no 'expressions' in meta_valid.json

[StawEndl]

what you are talking about, the meta_expressions.json, is rename from meta_valid.json? i rename meta_valid.json to meta_expressions.json, however, the code throw this exception:

File "/ai/home/project/MeViS-main/lmpm/data/datasets/mevis.py", line 66, in load_mevis_json
for exp_id, exp_dict in vid_data['expressions'].items():
KeyError: 'expressions'

what should i do next?

[heshuting555]

Thank you for your interest!

There is no need to rename. Just download the dataset and then run the code following the README.