AttributeError: 'Mesh' object has no attribute 'calc_normals_split'

[StjerneIdioten]

Discussed in https://github.com/StjerneIdioten/I3D-Blender-Addon/discussions/206

^{Originally posted by Mrtn1225 March 28, 2024} This is the first time I use blender and whatever I try to export anything to i3d this is the message that I get at the end of a log, I've tried fixing this for hours to no avail, How do I fix this?

Here is the rest of the log: