[gmx-users] Fatal error, please help

[Hua Wong]

When doing grompp using index to freeze groups of atoms, I obtain this error:

Fatal error: Atom 1673 in multiple Freeze groups (17 and 1)

I understand what it means, but I can't find the mistake I made in the ndx file.Looking at it and searching for mister 1673 doesn't help.

Any tips about the way I can get rid of it or find it are welcome.

Thanks