Burst Error

PaulUsul · December 3, 2019, 12:29pm

I was getting these errors on play in an empty scene with all my jobs [BurstCompile] commented out. Started copying code over to a new project to reproduce it so I could send a bug report, but could not reproduce it. Restarting unity fixed it. Hopefully this helps someone in the future googling the error

Unexpected exception Burst.Options.OptionException: Unexpected arguments: `--is-for-function-pointer --managed-function-pointer=0x00000197DF2C17F0`

  at Burst.Compiler.IL.Jit.JitCompilerService.Compile (Burst.Compiler.IL.Jit.JitCompilerService+CompileJob job) [0x0012a] in <3179d4839c86430ca331f2949f40ede5>:0

While compiling job: Unity.Entities.StructuralChange, Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::AddComponentEntitiesBatchExecute(Unity.Entities.EntityComponentStore*, Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|Unity.Collections.LowLevel.Unsafe.UnsafeList*, Unity.Collections, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)
InvalidOperationException: Burst failed to compile the function pointer `Void AddComponentEntitiesBatchExecute(Unity.Entities.EntityComponentStore*, Unity.Collections.LowLevel.Unsafe.UnsafeList*, Int32)`
  at Unity.Burst.BurstCompiler.Compile[T] (T delegateObj, System.Boolean isFunctionPointer) [0x0015e] in D:\project\Dwar\Library\PackageCache\com.unity.burst@1.2.0-preview.9\Runtime\BurstCompiler.cs:160
  at Unity.Burst.BurstCompiler.CompileFunctionPointer[T] (T delegateMethod) [0x00001] in D:\project\Dwar\Library\PackageCache\com.unity.burst@1.2.0-preview.9\Runtime\BurstCompiler.cs:78
  at Unity.Entities.StructuralChange.Initialize () [0x00001] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities\EntityManagerChangeArchetype.cs:55
  at Unity.Entities.EntityManager..ctor (Unity.Entities.World world) [0x0000e] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities\EntityManager.cs:162
  at Unity.Entities.World..ctor (System.String name) [0x00050] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities\World.cs:115
  at Unity.Entities.DefaultWorldInitialization.Initialize (System.String defaultWorldName, System.Boolean editorWorld) [0x0002c] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities.Hybrid\Injection\DefaultWorldInitialization.cs:127
  at Unity.Entities.AutomaticWorldBootstrap.Initialize () [0x00001] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities.Hybrid\Injection\AutomaticWorldBootstrap.cs:15

(Filename: Library/PackageCache/com.unity.burst@1.2.0-preview.9/Runtime/BurstCompiler.cs Line: 160)

and when exiting play

NullReferenceException: Object reference not set to an instance of an object
  at Unity.Entities.World.Dispose () [0x00080] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities\World.cs:146
  at Unity.Entities.World.DisposeAllWorlds () [0x00003] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities\World.cs:164
  at Unity.Entities.DefaultWorldInitialization.DomainUnloadOrPlayModeChangeShutdown () [0x0000f] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities.Hybrid\Injection\DefaultWorldInitialization.cs:87
  at Unity.Entities.DefaultWorldInitializationProxy.OnDisable () [0x0000b] in D:\project\Dwar\Library\PackageCache\com.unity.entities@0.2.0-preview.18\Unity.Entities.Hybrid\Injection\DefaultWorldInitializationProxy.cs:28

manifest looked like this:

{
  "dependencies": {
    "com.unity.2d.sprite": "1.0.0",
    "com.unity.2d.tilemap": "1.0.0",
    "com.unity.addressables": "1.1.10",
    "com.unity.ads": "2.0.8",
    "com.unity.analytics": "3.3.4",
    "com.unity.burst": "1.2.0-preview.9",
    "com.unity.cloud.userreporting": "0.2.4-preview",
    "com.unity.collections": "0.2.0-preview.13",
    "com.unity.entities": "0.2.0-preview.18",
    "com.unity.ext.nunit": "1.0.0",
    "com.unity.ide.rider": "1.1.4",
    "com.unity.ide.visualstudio": "1.0.11",
    "com.unity.jobs": "0.2.0-preview.13",
    "com.unity.mathematics": "1.1.0",
    "com.unity.memoryprofiler": "0.1.0-preview.7",
    "com.unity.performance.profile-analyzer": "0.4.0-preview.6",
    "com.unity.polybrush": "1.0.1",
    "com.unity.rendering.hybrid": "0.2.0-preview.18",
    "com.unity.test-framework": "1.1.8",
    "com.unity.textmeshpro": "2.0.1",
    "com.unity.timeline": "1.2.6",
    "com.unity.ugui": "1.0.0",
    "com.unity.modules.ai": "1.0.0",
    "com.unity.modules.androidjni": "1.0.0",
    "com.unity.modules.animation": "1.0.0",
    "com.unity.modules.assetbundle": "1.0.0",
    "com.unity.modules.audio": "1.0.0",
    "com.unity.modules.cloth": "1.0.0",
    "com.unity.modules.director": "1.0.0",
    "com.unity.modules.imageconversion": "1.0.0",
    "com.unity.modules.imgui": "1.0.0",
    "com.unity.modules.jsonserialize": "1.0.0",
    "com.unity.modules.particlesystem": "1.0.0",
    "com.unity.modules.physics": "1.0.0",
    "com.unity.modules.physics2d": "1.0.0",
    "com.unity.modules.screencapture": "1.0.0",
    "com.unity.modules.terrain": "1.0.0",
    "com.unity.modules.terrainphysics": "1.0.0",
    "com.unity.modules.tilemap": "1.0.0",
    "com.unity.modules.ui": "1.0.0",
    "com.unity.modules.uielements": "1.0.0",
    "com.unity.modules.umbra": "1.0.0",
    "com.unity.modules.unityanalytics": "1.0.0",
    "com.unity.modules.unitywebrequest": "1.0.0",
    "com.unity.modules.unitywebrequestassetbundle": "1.0.0",
    "com.unity.modules.unitywebrequestaudio": "1.0.0",
    "com.unity.modules.unitywebrequesttexture": "1.0.0",
    "com.unity.modules.unitywebrequestwww": "1.0.0",
    "com.unity.modules.vehicles": "1.0.0",
    "com.unity.modules.video": "1.0.0",
    "com.unity.modules.vr": "1.0.0",
    "com.unity.modules.wind": "1.0.0"
  }
}

xoofx · December 6, 2019, 10:03am

Have you started to install a newer version of burst on top of your existing/loaded project?
If it is the case, the project will be in an unbalanced state. You need to restart the editor (and potentially remove the Library folder)
It is a known issue unfortunately. The rule is that if you have burst installed on your project and you want to install a newer version, you need to close and re-open the editor after updating it.

tertle · December 6, 2019, 11:13am

Personally, I feel like it’s totally acceptable if you’re updating your compiler to require a restart.
But it would be really nice if it triggered a popup telling you to restart.
Especially for when you don’t directly update burst and instead it’s updated due to a dependency of another package you updated.

xoofx · December 6, 2019, 12:34pm

I agree. We will check if we have a way to access some notifications. I don’t know if it is possible with the current API of PackageManager.

elcionap · December 6, 2019, 4:24pm

The new input system (package) does this. It used (I’m not sure if still does) to trigger a “must restart editor” alert when installing the package or changing the input system in the Project Settings window.

[ ]'s

Nyanpas · May 19, 2021, 11:25am

Sorry for bumping this necro, but I am getting “Burst error BC1064: structs cannot be passed to or returned from external functions in burst. To fix this issue, use a reference or pointer.”

It seems it is coming from using float3 as parameters without the “ref” or “out” keywords in a separate class that has [BurstCompile] add’d to it like done here:
https://github.com/keijiro/BurstDirectCallTest/blob/main/Assets/NoiseTexture.cs

If you add a “float3 test” as a parameter like GetPixel(int x, int y, float t, float test), it will complain. Otherwise it will not.

However I haven’t had this issue in the past, and it just seemed to happen as I moved a the .cs-file I was working on into a new project. I can still run the project and test things out, though. It doesn’t seem to prevent me from playing back the scene.

TheVirtualMunk1 · April 28, 2022, 9:24am

The restart unity did it for me after these errors appeared when I upgraded burst. Thanks for the quick fix!

yifanchu183 · February 12, 2023, 10:40am

I got the same error

Nyanpas:

Sorry for bumping this necro, but I am getting “Burst error BC1064: structs cannot be passed to or returned from external functions in burst. To fix this issue, use a reference or pointer.”

It seems it is coming from using float3 as parameters without the “ref” or “out” keywords in a separate class that has [BurstCompile] add’d to it like done here:
https://github.com/keijiro/BurstDirectCallTest/blob/main/Assets/NoiseTexture.cs

If you add a “float3 test” as a parameter like GetPixel(int x, int y, float t, float test), it will complain. Otherwise it will not.

However I haven’t had this issue in the past, and it just seemed to happen as I moved a the .cs-file I was working on into a new project. I can still run the project and test things out, though. It doesn’t seem to prevent me from playing back the scene.

PraetorBlue · May 28, 2024, 2:17pm

Has anyone managed to successfully submit an asset store asset with a Burst dependency? This error seems to make it impossible to get approved.

Topic		Replies	Views
Fresh Install burst compiler Errors Unity Engine Burst	13	3291	February 13, 2020
Compiler errors - 0.4.0-preview.10 Unity Engine Entities , com_unity_entities	10	1448	January 5, 2020
namespace name `BurstCompile' could not be found Unity Engine Burst	11	17731	December 19, 2023
Burst error causes a crash at runtime in a build, but throws no error in the editor? Unity Engine Burst , Question	3	2173	June 26, 2024
Burst error Unity Engine Burst	6	1466	December 7, 2019

Burst Error

Related topics