I have successfully installed AmberTools19 on my Macbook and all tests passed. I can cue Antechamber and the command:
antechamber -fi pdb -i testpdb2.pdb -o mol2 -fo mol2 -c bcc
...runs just fine.
But when I try to run:
antechamber -fi pdb -i testpdb2.pdb -o mol -fo charmm -c bcc
I get the following error:
sh: /Users/madmarchhare/amber18/bin/charmmgen: No such file or directory
/Users/madmarchhare/amber18/bin/to_be_dispatched/antechamber: Fatal Error!
Cannot properly run "/Users/madmarchhare/amber18/bin/charmmgen -i ANTECHAMBER_PREP.AC -f ac -o mol -r MOL".
I note that there's a charmmgen.c file in the directory amber18/AmberTools/src/antechamber
... but I don't have python version :(.