Bug on export: "index 0 beyond bounds for empty array"


I’ve just today updated to the latest available public version on the Apple Store (Version 1.3.19 (485)).

I’m attempting to export my font but encountering the following error, immediately on export:

Something went wrong while exporting: *** -[__NSArrayM objectAtIndex:]: index 0 beyond bounds for empty array

Any help appreciated, entirely stuck at the moment.
(Happy to send source file to admins).

Can you send the file to support at this domain? We will have a look.

I could not reproduce the error, but I have a few informed guesses:

  1. Deactivate automatic generation for the class “Number” in Font Info > Features.
  2. Perhaps also for features numr, dnom and frac.
  3. Deactivate autohinting at export. The design does not lend itself for hinting that well.

Does it happen with other fonts as well? Then delete the app and re-download it from the AppStore.

Does this help?


Thanks - this is all super helpful.

This is my first font and I’m learning a lot in the process. Clearly still new things to learn too! I will have to read up on some of these points and make further updates.

Just awesome software though - thanks for making so brilliant and being so helpful :slight_smile: