"WARNING:Place:78 - The SLICE component "fft_buf/fft/dfly/xfft4/b3/raddr/COUT1_NET_O" could not be placed. SLICE "fft_buf/fft/dfly/xfft4/b3/raddr/COUT1_NET_O"."
"ERROR:Place:79 - There were not enough sites to place all selected components. This is probably due either to lack of resources, preference conflicts, or macro configuration placement requirements which cannot be met. If PAR has been run, please check the .par file for resource allocation and utilization and verify that there are sufficient resources to place the component(s). Also ensure that all placement conflicts have been resolved. If neither of these seem to be a problem, examine the size and shape of the macros in the design to make sure they all may placed on the device at the same time."