Qsys Generic Tristate Controller for Paralle Flash Interface

http://www.alteraforum.com/forum/attachment.php?attachmentid=11653&stc=1

I used Generic tristate controller for interfacing with parallel NOR flash of DE2-115

I am using Quartus 14.0

I am getting warning

Warning: de2_115_qsys.generic_tristate_controller_0: Properties (isFlash,isMemoryDevice,isNonVolatileStorage) have been set on interface uas - in composed mode these are ignored

How to resolve the issue