Modify the constraint to reference the auto-derived clock by the pin name attached
to the clock using [get_clocks -of_objects [get_pins
<PIN_NAME>]]
. Alternatively, use the create_generated_clock
constraint to force the name of the auto-derived
clock. An auto-derived clock can be renamed even after being referenced by some timing
constraints. For more details about using a generated clock constraint to force a clock
name, refer to the
Vivado Design Suite User Guide: Using
Constraints (UG903).