Description
You may see the warning message when you are using ALTMEMPHY based Altera DDRx High Performance Controller and the SDC file created with the IP can not find the internal node in the IP. The root cause is that the node path consists of instance name only instead of entity name and instance name.
In your QSF file:
If you have an assignment
set_global_assignment -name PROJECT_SHOW_ENTITY_NAME OFF
change it to
set_global_assignment -name PROJECT_SHOW_ENTITY_NAME ON