Failed to import. mat format EEG data file

Dear brainstorm expert, I had a problem about import the EEG file. I can't import the EEG data files and it shows some errors. Does anyone knows why the files could not read? Is there any bugs in recent update?
Thanks for your helping!

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Hi @Zhongrui

What is the origin of the file that you are trying to import?
From the error, it seems you selected the "Fieldtrip" format, and your file is missing some fields