Cadence Encounter : Clock issue

[FAbouzeid]

Hi!

I am encoutering an issue with Cadence encounter: when I try to Synthesize the clock tree, I get the following error:

**WARN: (ENCCK-3179): Clock CLK does not have sync pin.
**ERROR: (ENCCK-165): Cannot trace clock CLK

I have a multi power domain floorplan.

Anyone has ever seen this issue ?

Regards

 

[mk.jayanthi]

I guess, the clock CLK is not used by any flop in the design...