Release 14.7 - ngc2edif P.20131013 (nt64)
Copyright (c) 1995-2013 Xilinx, Inc.  All rights reserved.
Reading design F:/PSTR17R5B/ipcore_dir/myicon.ngc ...
WARNING:NetListWriters:298 - No output is written to myicon..xncf, ignored.
Processing design ...
   Preping design's networks ...
   Preping design's macros ...
WARNING:NetListWriters:306 - Signal bus U0/U_ICON/iCORE_ID_SEL<15 : 0> on block
   myicon is not reconstructed, because there are some missing bus signals.
  finished :Prep
Writing EDIF netlist file syntmp/myicon..ndf ...
ngc2edif: Total memory usage is 4318260 kilobytes