We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 29291

10.1 Timing Analyzer - "ERROR:ConstraintSystem:22 - In file: test.ucf, Invalid parameter: '%s'."


ERROR:ConstraintSystem:22 - In file: test.ucf, Invalid parameter: '%s'. 

Expecting a value for the constraint's '%s' value that satisfies the following condition: 

The value must be text that matches the regular expression: 



This is caused by incorrect constraint syntax. Please refer to the Constraint Guide for the detailed information. 


If the syntax is ensured to be correct, please open a WebCase at: 


This warning message is under review to be improved in ISE 13.1.

AR# 29291
Date 05/20/2014
Status Archive
Type General Article
  • ISE Design Suite - 11.1
  • ISE Design Suite - 11.2
  • ISE Design Suite - 11.3
  • More
  • ISE Design Suite - 11.4
  • ISE Design Suite - 11.5
  • ISE Design Suite - 12.1
  • ISE Design Suite - 12.2
  • ISE Design Suite - 12.3
  • ISE Design Suite - 12.4
  • Less
Page Bookmarked