Using amberff14SB + parmbsc1

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Hey there!

I have been searching for an appropriate force field to use for protein-DNA complexes. I now want to use amberff14sb with parmbsc1, so my question is if anyone knows how to implement these files into GROMACS? Because I tried the proposed file on the old user contributions, but it does not recognize well the atomtypes and the only option I found so far is to settle this with antechamber and acpype. So my question is, if someone is experienced with using this combination of force fields and can explain to me how you did it or has an idea why the proposed one on the user distribution is not working properly?

Thanks a lot in advance!