I have a Stratix V project on Quartus Prime 17.1 and A yellow "IP upgrade recommended" warning popped at the Project navigator. It does not go even I upgrade the ip that it saw as proplem. The IP that seems to be upgraded is a Platform Designer system. I tried generating it again and i tried performing automatic IP upgrade. However, Yellow warning did not go.
What should i do to make it disappear?
As I told in the question, I tried generating it again. I did it in Platform Designer. However, it didn't work.
There was no message regarding ip upgrade in the message log.
I solved the problem. It was a subsystem that I first create in Quartus 15.0. I have upgraded it and it's IPs in the platform designer before. However, it wasn't enough for Quartus apparently.
I changed the version number on the qsys file of the subsystem from 1.0 to 17.1 (all the other IP's had this as version number) and it worked.