Hello Experts!

I am having trouble running the following command:

tkregisterfv --mov /Users/djsandoval/Desktop/Selwyn/M87151031-2016002/Followup/PETCT/PET/STATICBRAINPET/2016002B/IM-0001-0001.dcm --reg /Users/djsandoval/Desktop/Selwyn/M87151031-2016002/Followup/PETCT/PET/STATICBRAINPET/2016002B/IM-0001-0001.dcm --surfs

as it outputs the following error:

if: Expression Syntax.

I've attached below the full output with the debug flag on. Any help would be greatly appreciated.

Thank you in advance.

Regards,

Anderson