Error showing while running the model.

Good morning to all,
Whlie running the caesar model, i am facing one error. Below you can see the error massage:

FATAL ERROR # 362
PIERCK - routine BUILDD, Vessel longitudinal direction length found to be zero.

My model includes abovegroung and underground portions and nozzle along with tanks. I have checked all the elements and i couldnt found any element with zero measurement.

I am using Caesar-II version 5.10. My model is based on B 31.4

Please tell me the solution.

Thanks and reagrds,
Peterson

Also check any "nozzle specifications" on the auxiliary dialogs. Make sure you have specified the direction cosines.

If you can't resolve the problem, send the job in to Tech Support so we can take a look at it.

Thank you very much Mr. Richard, I will check and let u you.

Thanks and reagrds,
Peterson

Thank you very much sir. It is done. Thank you once again.

Thanks and reagrds,
Peterson