Synthesis Failed in Vivado IPI AWS f1 FPGA

The problem is with the file make_post_synth_dcp.tcl

if {${BD_PATH} == "NONE"} {

#Do Nothing

} else {

add_files ${BD_PATH}

set_property is_locked true [get_files ${BD_PATH}]

}

I have commented the line set_property is_locked true [get_files ${BD_PATH}]

After this it is able to synthesis.

But I am not sure, this is the correct way. I have created AFI and Tested too.