Elaboration Error ICDPAV on xcelium

Hi,

I am facing this elaboration error message when using xcelium:

xmelab: *E,ICDPAV  (......) Illegal combination of driver and procedural assignment to variable dmp_oob_aout detected (output clockvar found in clocking block .....)

assign  signal_1  = signal_2;

In clocking block "signal_1" is declared as logic.  In the above assignment, "signal_2" is declared as wire.  I was not seeing this error msg when I used "ncsim". This started coming as soon as I moved to xcelium.  Any thoughts on this ?

Regards,

Harish