Flex-pep-docking (ab-initio mode)

Hello all,

To perform the Flex-pep-docking protocol (ab-initio mode), I need to create fragment files for the target peptide (with 8 residues). I have tried to do this with the make-fragment.pl script . However, I get the attached error. I have already installed the last version of Blast tools. please let me know what is the problem and how it can be solved?