"WARNING: The placer has been modified. No support available." "INFO: Relaxing hold constraints by 0.5ns." "INFO: Forcing unroutable nets to share resources. Proceed with caution."
Xilinx ISE 10.1 was released in 2008. It was designed for Windows XP and Windows Vista. When you try to run it on a modern 64-bit operating system, several critical issues occur: xilinx ise 101 patched
Install Oracle VirtualBox or VMware Workstation. "WARNING: The placer has been modified