If I try to run the 'Implement Design' process in my project, the ISE errors out immediately. There is NO message in the console...no indication of what may have failed. The synthesis reports OK. The only warnings in that are for ignored delay values and one unconnected port at the top level. These are fine.
I have checkd the command log and the only one the ISE invoked before the error was the xst stuff. It didn't even get to the translation phase. However, it reports 'Process "Synthesize" completed successfully'. Right after it says this, the error icons appear next to 'Implement Design' and the ISE stops.
Any thoughts?