Unity error: new transform constraint on bone with existing constraint

hirakyou

I got a SkeletonData asset error when importing to Unity after creating another transform constraint on a bone that already had one. I’m not sure if this is a bug, a known issue, or just a runtime limitation.

Misaki

hirakyou It is usually not a problem for a single bone to be constrained by multiple transform constraints, so if this is causing an error, it may be a bug. Please let us know the versions of Unity and spine-unity runtime you are using.
If possible, please provide us with a minimal Unity project that reproduces the issue via email: contact@esotericsoftware.com
Please include the URL of this forum thread in the email so we know the context. Then we can take a look at what's wrong.

Spinebot

When creating a transform constraint in Spine, ensure that the constrained bone is not a child of the target bone, as this can prevent the constraint from working properly. Additionally, the order of constraints can affect their functionality, so try resetting the constraint order to see if that resolves the issue. If the problem persists, it might be due to a limitation in the current runtime or a specific setup in your project.

hirakyou

Misaki I'm using Unity 6.2 (6000.2.0f1) and spine-unity 4.3 beta
I'm just trying to use spineboy and attach another bone transform constraint to crosshair bone and got the same error.

Misaki

hirakyou Thank you for letting us know the version number. I just tried it, and even with Spineboy unchanged, the data exported from Spine 4.3.39-beta resulted in an error. However, when I re-exported using version 4.3.36-beta, the issue did not occur.
There were no problems importing skeleton data exported after adding transform constraints to the crosshair bone, so the issue may have been caused by an update to the editor.

We apologize for any inconvenience this may cause, but during the beta period, there may be cases where the runtime has not yet caught up with updates to the editor.
We will address this issue in order, so please wait for the new runtime release or try 4.3.36-beta.

hirakyou

Misaki Yes, 4.3.36-beta works! Thank you!