cts help

[savi]

hi all

When I do CTS for the digital block I get the following error:

<clockDesign CMD> cleanupSpecifyClockTree
<clockDesign CMD> specifyClockTree -file Clock.ctstch
**ERROR: (SOCCK-404): CTS requires a uniquified netlist before you
can run clock synthesis.
Usage: specifyClockTree {-file <fileName> | -template}
[-dont_use]

**ERROR: (SOCSYC-194): Incorrect usage for command
'specifyClockTree'.

Can anyone help me out of this

Thank you
With regards
savitha