#SubScene missing in build

1 messages · Page 1 of 1 (latest)

rare marten
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Hello everyone. I have problems building my project. It does work, but the subscene is not available. I tried building with the platform package and also with the normal workflow but both didn't work. I am on version 1.0.0-pre.65. Can anyone help me?

frank sentinel
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Is your subscene in a scene, and is this scene (not the subscene) included in the scene list in the build window?

proud charm
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in other words: for subscene to get baked it must be part of included in a build scene.

rare marten
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Yes the subscene is in the scene that I build. I tried also building both scenes don't know if this helps or not

proud charm
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share details how exactly it is not available

rare marten
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Yes I can share tomorrow some pictures and the exact log. Sorry this was a late night idea to post this question on the Discord

dusk orbit
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and what platform you're building for

rare marten
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From Windows to windows

dusk orbit
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yep, that should work. i do personally recommend updating to 1.0.8, but i'm not specifically aware of an issue fixed about subscenes not appearing in builds (except for webgl)

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but yeah, wait for tomorrow when you can paste the exact message

rare marten
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This is the exception:

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NullReferenceException: Object reference not set to an instance of an object
at Unity.Entities.EntityQueryImpl.GetSingleton[T] () [0x00053] in .\Library\PackageCache\com.unity.entities@1.0.0-pre.65\Unity.Entities\Iterators\EntityQuery.cs:1419
at Unity.Entities.EntityQuery.GetSingleton[T] () [0x00000] in .\Library\PackageCache\com.unity.entities@1.0.0-pre.65\Unity.Entities\Iterators\EntityQuery.cs:2693
at Spawner.Start () [0x0004e] in C:\Users\denni\Unity\2D\FactoryMain\Factory\Assets\Scripts\Buildings\Spawner.cs:27

(Filename: ./Library/PackageCache/com.unity.entities@1.0.0-pre.65/Unity.Entities/Iterators/EntityQuery.cs Line: 1419)

NullReferenceException: Object reference not set to an instance of an object
at Unity.Collections.LowLevel.Unsafe.UnsafeUtility.WriteArrayElement[T] (System.Void* destination, System.Int32 index, T value) [0x00001] in C:\build\output\unity\unity\Runtime\Export\Unsafe\UnsafeUtilityPatched.cs:60
at Unity.Entities.DynamicBuffer1[T].set_Item (System.Int32 index, T value) [0x00001] in .\Library\PackageCache\com.unity.entities@1.0.0-pre.65\Unity.Entities\Iterators\DynamicBuffer.cs:193 at Unity.Entities.DynamicBuffer1[T].Add (T elem) [0x00012] in .\Library\PackageCache\com.unity.entities@1.0.0-pre.65\Unity.Entities\Iterators\DynamicBuffer.cs:347
at Spawner.SpawnTrashcan (Unity.Mathematics.int2 pos) [0x0005a] in C:\Users\denni\Unity\2D\FactoryMain\Factory\Assets\Scripts\Buildings\Spawner.cs:187
at TestGenerator.SpawnIronBlueprint (System.Int32 x, System.Int32 y) [0x000b5] in C:\Users\denni\Unity\2D\FactoryMain\Factory\Assets\Scripts\TestGenerator.cs:42
at TestGenerator.Start () [0x00021] in C:\Users\denni\Unity\2D\FactoryMain\Factory\Assets\Scripts\TestGenerator.cs:16

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And this is my build config:

image.png
frank sentinel
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I suspect you don't have a require for update dependency -edit-seems like you're trying to do this from a monobehaviour start which I doubt will ever work in a build

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And that you've done all your testing in editor with your subscene open

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Subscenes load async

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The world will tick multiple frames before the Entities load from it

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If you have an open subscene in editor its entities always exist but this is not how it works in builds

rare marten
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Oh well this is a good guess. I have required for update in my systems but not in my MonoBehaviour. Can you do this there as well?

frank sentinel
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No. But your entities won't exist in start

rare marten
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Ok then I will try a workaround for this. Thank you very much

frank sentinel
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(I have a personal rule never to access entity world from game objects because life cycle management is way too much of a problem)

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(I only drive gameobject behaviour from systems, but never the other way)

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If you do need to do it this way you'll have to query until entity exists or something

rare marten
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I spawn some entities from pressing a button. What would the best approach for this?

frank sentinel
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I do this all in systems

rare marten
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How do you connect the button to the system?

frank sentinel
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Well I use uitoolkit which requires no gameobjects

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But there are many ways you can link your ugui gameobjects

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As simple as some statics

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As complex as messaging systems

rare marten
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Ok thank you. Then I will have a look at this uitoolkit

reef crescent
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I'm facing this issue too right now :/

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I got all the null exceptions cleared up by adding RequireForUpdate<SpawnerComponent>(); but it never actually makes it to OnUpdate. Like the component never ends up loading in the build.