Cyclone V device LVDS IO standard error in Quartus 18.1 version

Hi,
I am trying to set one of my differential clock output to LVDS IO standard in 5CEBA7F27C8 cyclone V device and getting the following error

I have set the IO standards of the clock as below
set_instance_assignment -name IO_STANDARD LVDS -to CC_OUTCLK_P
set_instance_assignment -name IO_STANDARD LVDS -to CC_OUTCLK_N

Trying to map these pins to
PIN_J25 -to CC_OUTCLK_P
PIN_J26 -to CC_OUTCLK_N

As per one of the forums response I have removed the CC_OUTCLK_N pin assignment as Quartus can automatically assign the negative clock assignment
community.intel.com/t5/Programmable-Devices/Error-169175-Pin-with-LVDS-I-O-standard-needs-a-differential/m-p/265868#M69142

This is the error message:
Error (21179):Pins CC_OUTCLK_P and CC_OUTCLK_N form a differential pair and uses pseudo-differential output node upd3_vid_clk:u_upd3_vid_clk|alt_io_obuf:u_cyclonev_io_obuf|alt_io_obuf_iobuf_out_h5u:alt_io_obuf_iobuf_out_h5u_component|pseudo_diffa. However, these pins also have an I/O standard LVDS that cannot be supported by the pseudo-differential output node.

Please help