[MINC-users] error running mincmath

[minc-users@bic.mni.mcgill.ca]

Command: (executed during nu_evaluate)

mincmath -clobber -verbose -copy_header -zero -div in.mnc.gz in_nuc_field.mnc
out.mnc


Error message:
Files in_nuc_field.mnc and in.mnc.gz have different coordinate spacings (zspace)
nu_evaluate: crashed while running mincmath (termination status=256)


When I run mincinfo on the two volumes, I get the same output:

image dimensions: zspace yspace xspace
    dimension name         length         step        start
    --------------         ------         ----        -----
    zspace                    112          1.5      -86.396
    yspace                    256     -1.48438      178.728
    xspace                    256     -1.48438          190


any ideas on what causing?

Thank you.