Identifier uniqueness violation ... Missing Prefab with guid: ... Type:GameObject'. Multiple Objects

Unity Engine
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1

I am sometimes seeing the following warning that follows this format:

Identifier uniqueness violation: 'Name:5543007877981517530/Res_B_2F_WallCorner01 (Missing Prefab with guid: 944e39c160d86af4caa5cff79e644276), Type:GameObject'. Multiple Objects with the same name/type are generated by this Importer. There is no guarantee that subsequent imports of this asset will properly re-link to these targets.

There is a really good forum thread where bastien_humeau explaining a similar issue, but for the Type:‘Mesh’

Has anyone been able to reproduce this warning in a new project? I am trying to understand what is the issue and how it is happening.

2

Hey @Tiago_SD ,

I haven’t seen that message for the GameObject type yet, and I’m not sure how could that happen. It looks like we are maybe adding a component to show the missing prefab warning on the gameobject and it ends up adding this same warning component multiple times in your case?
Would it be possible for you to create a bug report with your project so we can have a better look at it?

Thanks!

3

As part of our investigation for this issue: C#: Difference between ForceReserializeAssets and Reimport? we found two lines in our logs:

and

which led us to the thread listed in the OP, and this thread. We did not find any duplicate child names in the child FBX, though with “Type:GameObject” it sounds like our issue is the same as this thread not the linked thread, and is unfortunately still a mystery. I do not have answers, I just wanted to give more context to the OP here.