Hi,

I'm trying to run the following mris_transform command in Freesurfer version 7.4.1:

mris_transform group1/z/Freesurfer/surf/lh.smoothwm group1/z/Freesurfer/mri/transforms/talairach.xfm group1/z/Freesurfer/surf/tal/lh.smoothwm.tal.asc

But it's giving the following error:

The transform does not have the valid src volume info.
Either you specify it with --trx-src or
make the transform to have the valid src info.

In a previous version (Freesurfer 5.3) it ran without problems.

Do you know what could be the problem?

Thank you