Why is the following warning issued?
"WARNING:ConstraintSystem:85 -Constraint %s: This constraint will be ignored because %s could not be found.
Constraint !%1!: This constraint will be ignored because !%2! could not be found."
This warning is issued because the signal or net cannot be found in the design.
To resolve this issue. make sure that correct hierarchy for the signal is used in the constraint and that the signal is not optimized out of the design during synthesis.
For example, if the signal is a lower-level module, you will need to use the full hierarchical name in the constraint such as: