microstrip patch antenna design with CST ：error messages while using parametric sweep

anyone can help me?
i"m designing microstrip pacth antenna with cst studio suite 2014... i got this message when i do "parametric sweep"
anyone know how to solve it?

the message is*
"The structure update failed for at least one parameter combination. Additional information can be found in the logfile."

please kindly help.. thank you

hi rizkanadhira

i think you use transient time domain solver

1.first try to use frequency domain solver . its more accurate
2.second,if you have problem yet i think it rely to your history list
examine the history option tools and update and execute once and compare the errors
then contact me..
3.if doesnt match try 2013 , in some cases 2013 is better
regards,
amir,
john johny

Hi rizkanadhira,

Can you give me that attached antenna exact cst files.

if have any exact manual for that just help me

Thanks

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