model correlation

Altair Forum User

hello, 
i'm trying to do a correlation between experimental results and numérical ones, so for this correlation i am using as a reference file a .UNV ( 164) and for correlation file results extracted from a modale analysis optistruct, so once i clic on load an error message apear it said that '' erreur: missing operand ar_@_ in expression..'' as showing in the picture.
i'm sure that the error comes from the unv file.
so my question is : is it the unv fomat file ''dataset 164'' that causes this error? if yes what dataset should be used ' dataset  15, 18, 55, 58, 82 or  151?
if there is any other suggestion i'm all ears. 
and thank you in advance for all your replies

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