Font Validator Error Code E2101

[lettersoup]

Hi!
Font Validator MacOSX-GUI-2.1.6 is giving following error code:

OTFs are exported with Glyphs Version 2.6.5 (1342).
Does somebody know how to fix it.
Many thanks in advance!

[GeorgSeifert]

This can be ignored. The flag is newer than Font Validator.

[lettersoup]

Thanks Georg!!