Multiple master issue

Hello everybody,

An old file designed with FL5 produce otf that give me a strange error that i don't understand:

Can anyone help me to understand what's going on, do i messed up something? How can i fix it?


  • Kent LewKent Lew Posts: 905
    edited August 2018
    That looks like this might be an error with the Font Bakery script, not the font.
    Are you really testing an OTF, or is it a TTF? If it is indeed an OTF, then there wouldn’t be a loca table, so I’m not sure why the script would be trying to check one. And that’s why there would be a keyError.
    Dave Crossland will likely come along and can comment.
  • Kent LewKent Lew Posts: 905
    P.S. — By “OTF”, I guess what I really mean is an “OTF with CFF outlines”, as opposed to “OTF with TrueType outlines.” Technically, they are both OpenType Fonts. As I’m sure someone will be quick to point out.
  • Please repost the error report at and email [email protected] the file and we'll fix fontbakery
  • Felipe sent me a note that this is already fixed in the latest release. Install Python 3 and then run:

        pip3 install fontbakery
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