Dear FreeSurfer experts,

I am FreeSurfer longitudinal processing the thirty time points data.
When I tried the step 2 process to make a template, the process stopped with an error.
The error message as the below.

===============
...
mri_diff --notallow-pix /home/Desktop/MyProject/CO30/mri/rawavg.mgz /home/Desktop/MyProject/CO30/mri/rawavg.mgz 

Volumes differ in geometry row=1 col=1 diff=0.054242 (0.054242)

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WARNING: Image geometries differ across time, maybe due to aquisition changes?
         This can potentially bias a longitudinal study! Will continue in 10s.
*******************************************************************************

Word too long.


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My command line was:
recon-all -base SET1template -tp CO01 -tp CO02 ... -tp CO30 -all

How can I fix the error?

Best wishes,

Han