Abfe calculations cannot process charged molecules

[TIAN298]

When I was using abfe calculation, I'm frustrated when finding out abfe cannot process charged molecules, which significantly limited its application as most ligands are charged. Is there a way to solve this problem?

Below is the output of my log file in abfe calculation:
ValueError: Charged alchemical molecules are not currently supported for solvation free energies. Molecule total charge: 1.

[IAlibay]

@TIAN298 net charge transformations are currently not supported because we don't have any correction for it in place yet.

However, we are working on implementing this here #1614.