ssconvert to tex ，xelatex compile ，error ： Missing number, treated as zero
I use texlive 2020 ， xelatex compile，but，appear ‘Missing number, treated as zero’ ，thise ：
\ifthenelse{\lengthtest{\gnumericTableWidthComplete > \linewidth}}%
{\def\gnumericScale{\ratio{\linewidth-%
\tabcolsep*\gumericNumCols*2-%
\arrayrulewidth*\gumericNumCols}%
{\gnumericTableWidth}}}%
{\def\gnumericScale{1}}modify thise
\ifthenelse{\lengthtest{\gnumericTableWidthComplete > \linewidth}}%
{\def\gnumericScale{1*\ratio{\linewidth-%
\tabcolsep*\gumericNumCols*2-%
\arrayrulewidth*\gumericNumCols}%
{\gnumericTableWidth}}}%
{\def\gnumericScale{1}}its ok
英文不好，请见谅！