[MINC-users] installing N3

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

I met a  problem when runing make test of N3. It
failed for
Error: Composite mask volume is empty.  Check for one of the following:
 1) the user supplied mask is empty (all zeros)
 2) the values within the region of interest are entirely less than one
 3) the user supplied background threshold is too high
 4) the intersection of the various masking options yields an empty mask
nu_estimate: crashed while running nu_estimate_np_and_em (termination
status=7424)

I use the downloaded dat in test. How to solve this problem?

Thanks

Sean