Hi Freesurfers,
  I've just tried to use the long_mris_slopes command on some longitudinal data. I've created my long.qdec.table.dat file. I've run this command before without any problems but I need to re-run it again. This time when I try to re-run it this error pops up:

ERROR 1 : mris_label_calc intersect did not work?

Is there any way to fix this? it also tells me the following:

cp: target 'path/subjectID/lh.long.cortex.label' is not a directory

Please let me know if there is any way to fix this. thank you!!

-Shannon K.