AR# 40758: 13.x Project Navigator - I am unable to open the Timing Constraints Report (.ptwx) from the Design Summary
13.x Project Navigator - I am unable to open the Timing Constraints Report (.ptwx) from the Design Summary
When I attempt to open the Timing Constraints Report from the Design Summary window, the following warning appears and the report does not open:
"WARNING: Parsing error for file: C:/Projects\test_proj\test_cw.ptwx"
The cause of this issue appears to be the -mt switch under the PAR options.
The ".ptwx" file has different content when -mt=OFF is set. When -mt is set to anything other than OFF, the ".ptwx" file has additional "<twWarn>" and "<twInfo>" tags embedded between the "<twReport>" and "<twBody>" tags. This causes the parsing problem and the warning message to appear.
This issue is resolved in ISE Design Suite 14.1.
In software release versions prior to 14.1, there are two possible ways to avoid the warning, and get the report to open and display correctly:
Set the -mt option to OFF.
Manually remove the twWarn and twInfo tags, and their content.