When I use Timing Analyzer, TRCE, or FPGA Editor, the system reports the following error:
"ERROR:Timing:2581 - XML Parser Exception code 0 An exception occurred! Type:RuntimeException, Message:The primary document entity could not be opened. Id=C:/TEMP/xil_4 parsing file C:/TEMP/xil_4"
What does this message mean? How do I fix the problem?
This error occurs when the timing tools do not create unique file names for temporary timing reports. It can occur only when two or more instances of static timing analysis are running simultaneously.
To resolve this issue, give different names to the output report file.
trce design1.ncd -o design1.twr -xml design1.xml
trce design2.ncd -o design2.twr -xml design2.xml
This will be fixed in a future version of the timing tools (after 7.1i).