fontmake: Error: In 'Desktop/OTWalla/DesignSpace-UFO/OT_Walla.designspace': Generating fonts from Designspace failed: /Users/David/Desktop/OTWalla/DesignSpace-UFO/masters/OTWalla-Black.ufo/features.fea:3:1: Expected glyph class name
Does anyone have any idea?
At the moment there are no features or any OpenType options on the font.
If we talk about features there is non on it, on Prefix, there is only this three line.
@(+ isn't a valid name. You've also got a few class names in there with accented characters which may or may not be valid depending on the software.