In the Post Place & Route Static Timing Properties within ISE, I set the "Report Unconstrained Paths" property to "yes" so the timing report includes a report for unconstrained paths. However, I encounter the following error when I launch the "Generate Post-Place and Route Static Timing" process:
ERROR:Portability:90 - Command line error: Argument "top_level.ncd" has an
invalid extension. The valid extension is ".pcf". If your file name has
more than one "." in it you must explicitly enter the full file name with its
How can I resolve this error?
This error occurs when entering values other than a numeric value for "Report Unconstrained Paths". This field should only contain a number indicating the total number of unconstrained paths displayed in the timing report.
To resolve this error, remove any strings from this field and instead use numeric values only.