mri_vol2surf --cortex --hemi lh --interp trilinear --o rest2.nii.gz --out_type niigz --reg register.dat --projfrac-avg 0.500 --mov rest2.nii --surfreg sphere.reg --trgsubject fsaverage

A source volume path must be supplied

Hey,

I'm running the above command, getting an error 'A source volume path must be specified'

I checked all the source paths, they exist. But the output path doesn't , which is weird as it isn't a source path.

Please help,

PK