[Log] Reference map 'creativecore.mixins.refmap.json' for creativecore.mixins.json could not be read.

[Lucky-56]

Reference map 'creativecore.mixins.refmap.json' for creativecore.mixins.json could not be read. If this is a development environment you can ignore this message
Reference map 'creativecore.mixins.refmap.json' for creativecore.forge.mixins.json could not be read. If this is a development environment you can ignore this message

appears at startup, assuming I'm not in a 'dev environment' this shouldn't happen

NeoForge version: 21.1.229
Mod version: 2.13.38