Hi @richard, sorry, I did not make it clear.
First, MNE-Python version is 0.24.dev not 0.23. It was a typo.
Second, I got error message like below.
Third, I guess the problem is that it can’t access T1 but I am not sure which T1 I should access. This participant has its own T1 image and preprcoessed in freesurfer as well as its bem. I saved it under derivatives. When I tried suggested script below, it showed error when I used bids.session or bids.root.
" def get_t1_from_meeg(bids_path):
bids_path.session = ‘MRI’
mri_t1_path_generator = get_t1_from_meeg"
Any comments? I appreciated your help. Thank you~~