spine-unity 4.3-beta

acidie

Hello! Does spine-unity 4.3-beta (2025-04-28) work with Spine 4.3.35-beta (May 29, 2025) ?

I'm getting an error on importing in Unity 2022.3 :

[Worker24] Error reading skeleton JSON file for SkeletonData asset: MODEL_SkeletonData
Error reading animation: ANIMATION
Physics constraint not found: bone6

"bone6" uses a physics constraint.
The “Mix” field of this constraint is used in "ANIMATION", which is a slider.

I was previously using 4.3.14beta and it imported fine. This is before sliders were added.

Spinebot

The error you're encountering is likely due to the new features introduced in Spine 4.3.35-beta, specifically the use of sliders in physics constraints, which may not be fully supported in the spine-unity 4.3-beta runtime you are using. Since you mentioned that the issue arises with the "Mix" field of the physics constraint being used in an animation, it suggests that the runtime might not yet support this new feature. You may need to wait for an updated version of the spine-unity runtime that includes support for these new features or consider reverting to a version of Spine that is compatible with your current runtime.

acidie

This one says "Compatible with Spine 4.3.00-beta or NEWER", so I wanted to clarify.

Harald

@acidie The spine-unity 4.3-beta runtimes (as well as other runtimes) are not done porting yet, sorry for the inconvenience! Good catch regarding the incorrect text on the download page, we'll fix that.