Why indicate error in running co-simulation in ADS?

Hi all,
I run a wilkinson circuit in co-simulation in ADS2008,something wrong with my layout.But i can not find the reason and fix it.Anyone kindly help me?
Thank you in advance,

The error messge is saying that there is no 0 Hz (DC) frequency specified within the EM simulation component results so that when the DC simulation is done, to start the HB simulation, it cannot be completed.

Check you Momentum Component properties. The "Lowest Frequency" should be set to 0 Hz.

You may also want to check the "Highest Frequency" too. When using 2.5 GHz with order of 3 you need to include the response of the whole circuit up to 7.5 GHz.

thanks REALAEL's reply.but i fixed it now .