I have seeing this error many times when I update org-plus-contrib package on Emacs for Windows.

    ob-sclang.el:63:1:Error: Cannot open load file: No such file or directory, sclang-interp

So far, nothing breaks, because I do not use anything related to ob-sclang.el.

The error is caused by (require 'sclang-interp) which is referring to a package I do not have on my system.

Thanks,

David