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'Can't destroy Transform component' error when exiting play mode #10

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JohannesMP opened this issue Jan 17, 2020 · 1 comment
Open

'Can't destroy Transform component' error when exiting play mode #10

JohannesMP opened this issue Jan 17, 2020 · 1 comment

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@JohannesMP
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In 2018 and later (potentially 2017 as well, haven't tested) Unity has problems cleaning up the RuntimeDebugDraw object nested inside the hidden wrapper object when exiting play mode. For some reason it complains about something trying to delete its Transform component:

image

There is no call stack, so this is originating in Unity's own internal code.
JohannesMP added a commit to JohannesMP/unity3d-runtime-debug-draw that referenced this issue Jan 17, 2020
@JohannesMP
Fix 'Can't destroy Transform component' play error
d8920b6 
(See issue jagt#10) In 2018 Unity has problems cleaning up the `RuntimeDebugDraw` object nested inside the hidden wrapper object when exiting play mode. For some reason it complains about something trying to delete its Transform component: https://i.imgur.com/aZ6oEmF.png - there is no call stack, so this is originating in Unity's own internal code.

By un-parenting the object right before the play mode scene is cleaned up this error appears to not occur and the object is cleaned up as expected without Unity's backend for some reason trying to delete its Transform component.
@JohannesMP JohannesMP mentioned this issue Jan 17, 2020
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@JohannesMP
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This issue appears to be resolved with changes in my pull request.

Since the RuntimeDebugDraw object only is destroyed like this when exiting play mode, it can be mitigated by unparenting it right as play mode exits, but before it is cleaned up. The object is still cleaned up correctly, just without an annoying error.

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@JohannesMP