Has anyone experience errors during

detailed_placement -check

? Any suggestions on how to correct them? Some of the warning I am seeing are the following:

floorplan/5-ioPlacer.log:[WARNING PPL-0015] Macro macro_mem.genblk1\[0\].mem is not placed.
<repeats for different macros>
...


placement/13-opendp.log:[WARNING DPL-0018] detailed placement failed on input1.
<repeats>
...

placement/13-opendp.log:[WARNING DPL-0004] Placed in rows check failed (129).

placement/13-opendp.log:[WARNING DPL-0005] Overlap check failed (106).

placement/13-opendp.log:[WARNING DPL-0006] Site aligned check failed (187).

Effort is for small design with 8 SRAMs