Monkey 5ttgen

I am trying to run 5ttgen with monkey data.

this was my code: (anat.mif is T1 file)

5ttgen fsl anat.mif 5tt_nocoreg.mif

cp 5tt_nocoreg.mif …/dwi/5tt_nocoreg.mif

cd …/dwi

and i got this warning sign, 5ttgen fsl anat.mif 5tt_nocoreg.mif

cp 5tt_nocoreg.mif …/dwi/5tt_nocoreg.mif

cd …/dwi

5ttgen:

5ttgen: Note that this script makes use of commands / algorithms that have relevant articles for citation; INCLUDING FROM EXTERNAL SOFTWARE PACKAGES. Please consult the help page (-help option) for more information.

5ttgen:

5ttgen: Generated scratch directory: /Users/MINJIKIM/R1006_2/5ttgen-tmp-P7C2QH/

Command: mrconvert /Users/MINJIKIM/R1006_2/anat.mif /Users/MINJIKIM/R1006_2/5ttgen-tmp-P7C2QH/input.mif

5ttgen: Changing to scratch directory (/Users/MINJIKIM/R1006_2/5ttgen-tmp-P7C2QH/)

Command: mrconvert input.mif T1.nii -strides -1,+2,+3

Command: maskfilter /Users/MINJIKIM/fsl/data/standard/MNI152_T1_1mm_brain_mask_dil.nii.gz dilate mni_mask.nii -npass 4

Command: standard_space_roi T1.nii T1_preBET.nii.gz -maskMASK mni_mask.nii -roiFOV

Command: bet T1_preBET.nii.gz T1_BET.nii.gz -f 0.15 -R

Command: fast T1_BET.nii.gz

Command: run_first_all -m none -s L_Accu,R_Accu,L_Caud,R_Caud,L_Pall,R_Pall,L_Puta,R_Puta,L_Thal,R_Thal -i T1.nii -o first

5ttgen: [ERROR] FSL FIRST has failed; only 6 of 10 structures were segmented successfully (check /Users/MINJIKIM/R1006_2/5ttgen-tmp-P7C2QH/first.logs)

5ttgen: Scratch directory retained; location: /Users/MINJIKIM/R1006_2/5ttgen-tmp-P7C2QH/

cp: 5tt_nocoreg.mif: No such file or directory

cd: no such file or directory: …/dwi

how can i solve this problem is it because my data is not human but monkey data?