#56 Argument "." isn't numeric in addition vcf-contrast line 273, <$__ANONIO__> line 859736

[alig]

Hi,
I'm trying to run vcf-contrast but get the following errors

vcf-contrast -n +$Affected -$Controls $inputDir/$VCF > $Family.common.vcf

Argument "." isn't numeric in addition (+) at vcf-contrast line 273, <$ANONIO> line 859665.
Argument "." isn't numeric in addition (+) at vcf-contrast line 273, <$ANONIO> line 859683.
Argument "." isn't numeric in addition (+) at vcf-contrast line 273, <$ANONIO> line 859736.
Argument "." isn't numeric in addition (+) at vcf-contrast line 273, <$ANONIO> line 859745

for many lines

I have 2 affecteds & one control

Any help would be great
alig