I am using the Q-CHEM/CHARMM interface to do QM/MM claculations. Everything works fine when I use the classical force field. But when I turn to use the drude as MM part I get the error as follow:

At line 2610 of file /home/chenjf/software/c42b2/source/gukint/gukini.src
Fortran runtime error: Bad real number in item 4 of list input

so can someone give me some advice grin

Thanks in advance