Missing = inserted for \ifnum.

[rfabbri]

I get this error on Mac OS:

CVPR 8.5 x 11-Inch Proceedings Style `cvpr.sty'.
(/usr/local/texlive/2015/texmf-dist/tex/latex/lineno/lineno.sty)
(/usr/local/texlive/2015/texmf-dist/tex/latex/enumitem/enumitem.sty))
! Missing = inserted for \ifnum.
<to be read again>
                   E
l.9
?

pdfTeX 3.14159265-2.6-1.40.16 (TeX Live 2015)

[taiya]

Hi there,

I don't think we have enough info to help.
I am not getting any error under macOS with (or Overleaf):

(base) /Library/TeX/Distributions: pdflatex --version
pdfTeX 3.141592653-2.6-1.40.24 (TeX Live 2022)
kpathsea version 6.3.4

Which version of texlive are you using? (is it up to date?)
Are you using a pristine copy of the repo? (I am not going to debug your code)

[rfabbri]

Are you using a pristine copy of the repo?

yes

Which version of texlive are you using? (is it up to date?)

The error occurs with an old version:
pdfTeX 3.14159265-2.6-1.40.16 (TeX Live 2015)

Updating it now works:
pdfTeX 3.141592653-2.6-1.40.25 (TeX Live 2023)