Fitter Error in Arria 10, while placing IOPLL and LVDS SERDES in a single bank

Hi, I am using Arria 10 board: 10AX048E4F29M3SG I am instantiating one IOPLL instance and 7 LVDS_SERDES instances (for RX) (4 channels per instance) in a single IOBANK (3C) While doing so, I am ...