12-03-2015 02:49 AM
12-03-2015 02:52 AM - edited 12-03-2015 02:55 AM
If you check page #15 from below UG, you will find this device xc6vsx315t is not supported with ISE WebPack
If you are not using WebPack and having valid license for this device, then you need to check version limit present in license file. Please check below AR to know details about version limit
You can attach your license file here for further investigation.