When using XPower on my CoolRunner-II design, the following error occurs when loading the design:
"ERROR:Power:5 - XML exception - line 137:Attribute 'Stepping' is not declared for element 'Document'"
This error occurs in ISE and in stand-alone mode.
This issue has been fixed in the ISE Design Suite 10.1, which is scheduled for release in March 2008.
To work around this issue before the 10.1 release, follow these steps:
1. Open the .cxt file.
2. At the bottom of the page, edit the following:
3. Save and load the design in XPower.