Bug Internal build system error. Backend exited with code after upgrade to 2021.1.4f1 (stable)

My current project version is 2020.3.5f1, and when I try to upgrade to 2021.1.4f1 (which isn't an alpha or preview version or w/e), I'm getting an internal build system error.

Full error log:
Sorry for not formatting, it seems code block on this forum is bugged and when I put bellow log in it, it shows nothing.

Internal build system error. Backend exited with code -1073741819.
[ 0s] Delete 218 artifact files that are no longer in use. (like Library\Bee\artifacts\mvdfrm\UnityEngine.RuntimeInitializeOnLoadManagerInitializerModule.dll_7B3442CDE0AFCFB2.mvfrm)
[ 0/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.QuickSearchModule.dll_7011386472974306020.movedfrom
[ 1/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.SceneTemplateModule.dll_14490810357445823973.movedfrom
[ 2/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.GraphViewModule.dll_11242485285375053570.movedfrom
[ 3/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.dll_13023493519774454993.movedfrom
[ 4/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.Graphs.dll_804517723817288630.movedfrom
[ 5/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.DeviceSimulatorModule.dll_5192806318143587197.movedfrom
[ 6/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.PackageManagerUIModule.dll_2247061071181139424.movedfrom
[ 7/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.CoreModule.dll_2211759015155375492.movedfrom
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[ 10/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.UnityConnectModule.dll_13187618719679516218.movedfrom
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[ 14/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEditor.UIElementsSamplesModule.dll_10807601425632026413.movedfrom
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[ 24/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.dll_16672613012962910646.movedfrom
[ 25/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.DSPGraphModule.dll_7294152862093958061.movedfrom
[ 26/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.GIModule.dll_15368537392775482226.movedfrom
[ 27/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.GameCenterModule.dll_391385374921541127.movedfrom
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[ 32/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.InputLegacyModule.dll_3925943608803669447.movedfrom
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[ 34/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.JSONSerializeModule.dll_6617661495965488652.movedfrom
[ 35/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.LocalizationModule.dll_8425413305846060025.movedfrom
[ 36/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.ParticleSystemModule.dll_4883677227907214133.movedfrom
[ 37/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.PerformanceReportingModule.dll_1791068741274831982.movedfrom
[ 38/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.PhysicsModule.dll_369483886487501995.movedfrom
[ 39/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.Physics2DModule.dll_13200262605097130813.movedfrom
[ 40/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.ProfilerModule.dll_10533604170202288537.movedfrom
[ 41/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.RuntimeInitializeOnLoadManagerInitializerModule.dll_720036094384752134.movedfrom
[ 42/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.ScreenCaptureModule.dll_8484312853618737774.movedfrom
[ 43/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.SharedInternalsModule.dll_4449711243223630917.movedfrom
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[ 48/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.SubsystemsModule.dll_6433484283636269972.movedfrom
[ 49/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.TerrainPhysicsModule.dll_4918202799681299906.movedfrom
[ 50/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.TerrainModule.dll_2262820295806010777.movedfrom
[ 51/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.TextCoreModule.dll_17916299956850784924.movedfrom
[ 52/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.TextRenderingModule.dll_11456532523055661667.movedfrom
[ 53/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.TLSModule.dll_9826543829678303935.movedfrom
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[ 55/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UIElementsModule.dll_6739273207701766027.movedfrom
[ 56/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UIElementsNativeModule.dll_7613580056116641282.movedfrom
[ 57/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UIModule.dll_4071069847403424004.movedfrom
[ 58/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UmbraModule.dll_1600399443710297613.movedfrom
[ 59/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityCurlModule.dll_11360174099273274773.movedfrom
[ 60/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityConnectModule.dll_11845409755614023397.movedfrom
[ 60/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UNETModule.dll_15310227000714526248.movedfrom
[ 62/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityAnalyticsModule.dll_7162341175858969905.movedfrom
[ 63/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityTestProtocolModule.dll_5890433634993222787.movedfrom
[ 64/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityWebRequestAssetBundleModule.dll_6206481339206556866.movedfrom
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[ 67/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityWebRequestTextureModule.dll_17322286374806956443.movedfrom
[ 68/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.UnityWebRequestWWWModule.dll_7555038554608475863.movedfrom
[ 69/254 0s] MovedFromExtractor Library/Bee/artifacts/movedfrom/UnityEngine.VehiclesModule.dll_15540692475173362215.movedfrom
[ 70/255 0s] WriteText Library/Bee/artifacts/1300b0aE.dag/UnityEngine.TestRunner.dll.movedfrom.rsp
[ 71/256 0s] WriteText Library/Bee/artifacts/1300b0aE.dag/UnityEngine.UI.dll.movedfrom.rsp

 

Same problem. Tried installing 2021.2.0a15 and my project won't open now. I've tried multiple versions of unity and they all print this error to the console and I can't run the project. I'm blocked by this but will try to completely reinstall unity tomorrow.

 

I had the same problem. I fixed this by completely removing the "Bee" folder located in your project: Project\Library\Bee

 

Yeah, I never got around to updating this thread but I did the exact same thing

 

Didnt work for me, any ideas?

 

pls also i need fix fast

 

Got the same problem in 2021.2.0f1

Internal build system error. Backend exited with code ...

 

One tip, if you have a strange username like a chinese character, build it on a normal username.

 

Most of the time when I run into a strange compilation issue like this, deleting the entire Library folder and reloading the project clears things up.

 

Ah, so now as well as killing the Unity Editor process on closing a Unity project (due to the longstanding Application.shutdown.cleanupMono bug), I now need to delete the Library folder as well. Cool, thanks.

Unfortunately deleteing the Library folder didn't fix it for me. Any ideas what to do?

 

Same probem here ;-;

 

Reverting to 2021.1.2 seems to have made it a bit more stable. I still have to close Unity by killing the process in Task Mnaager, but at least I can work.

 

Same problem, please, fix it!

 

Same problem

 

Same: 2021.2.6f1

 

Same here 2021.1.3f1

 

Same 2021.2.8f1

 

Same problem 2021.2.14f1

 

Same, 2021.1.15f1.

 

Same, 2021.1.15f1

 

did you guys make sure your whole path has no weird characters (or spaces, symbols), including your username on windows etc. I started new windows acount made sure no weird characters and it works. In fact this seemed to solve many of unitys issues, before that Id not been able to make a build for years. I felt sort of shocked how well it worked after that.

Suprised its like this considering many users around the world will have non english letters in their paths, must be a lot of suffering going on

 

Unity 2021.3.0f LTS . Same issue.

 

Same problem. 2021.2.5f1

 

Unity 2021.3.0f LTS . Same issue.

 

Unity 2021.3.0f LTS. Same issue. Is it related to firebase?

 

Install The .NET 6.0 SDK And Restart Your Unity

 

Same issue, but it is not something we can reproduce. The failure is intermittent. Usually the next build on build machine succeeds.

Code (CSharp):

1. 17:05:22  Starting: C:\Program Files\Unity\Hub\Editor\2021.1.16f1\Editor\Data\bee_backend.exe --dagfile="Library/Bee/1900b0aPDevDbg.dag" --profile="Library/Bee/profiler.json" --continue-on-failure --stdin-canary ScriptAssemblies
2. 17:05:22  WorkingDir: D:/Jenkins/workspace/osmos_Project_Build_project_main/CosmosUnity
3. 17:05:22  ExitCode: 2 Duration: 0s185ms
4. 17:05:22  STDOUT:
5. 17:05:22  [364/597  0s] CopyTool Library/PlayerScriptAssemblies/EnhancedScroller.pdb
6. 17:05:22  [365/597  0s] CopyTool Library/PlayerScriptAssemblies/Fusion.Addressables.pdb
7. 17:05:22  [366/597  0s] CopyTool Library/PlayerScriptAssemblies/MEC.pdb
8. 17:05:22  [367/597  0s] CopyTool Library/PlayerScriptAssemblies/Unity.RenderPipelines.ShaderGraph.ShaderGraphLibrary.pdb
9. 17:05:22  [369/597  0s] CopyTool Library/PlayerScriptAssemblies/Unity.TextMeshPro.pdb
10. 17:05:22  [372/597  0s] CopyTool Library/PlayerScriptAssemblies/sc.vegetationspawner.runtime.pdb
11. 17:05:22  [378/597  0s] CopyTool Library/PlayerScriptAssemblies/RootMotion.Shared.pdb
12. 17:05:22  [379/597  0s] CopyTool Library/PlayerScriptAssemblies/Dreamteck.Splines.pdb
13. 17:05:22  [380/597  0s] CopyTool Library/PlayerScriptAssemblies/Unity.Formats.Fbx.Runtime.pdb
14. 17:05:22  STDERR:
15. 17:05:22  tundra: error: failed to create temporary file: C:\Users\cosmosbuild.CompanyNameWasHere\AppData\Local\Temp\tundra.10572.9
16. 17:05:22  errno: 2 (No such file or directory) GetLastError: 5 (0x00000005): Access is denied.

 

2021.3.1f1still have it

 

2021.3.2f1 causes the same issue.

 

Unity 2021.3.1f LTS same issue

 

Unity 2021.3.3f1 LTS same issue

This reoccurring bug makes working with Unity impossible for me.

 

2021.3.2f1 LTS and Alpha 2022.2.0a13 same issue

 

Unity 2021.3.3f1 LTS same issue

 

Just to add to the list, Unity 2021.3.0f1 same issue.

 

2021.3.1f1 LTS
My co-worker had the same problem, and after updating firebase to version 9.0.0 it worked for him, but broke for me...

I got 2 different erros:

Internal build system error. Backend exited with code 2.
tundra: error: Unexpected stdin

Backend produced unparsable log entry
{"msg":"enqueueNode","enqueuedNodeAnnotation":"MovedFromExtractor Library/Bee/artifacts/mvdfrm/UnityEditor.UnityConnectModule.dll_FFB3750DB57770ED.mvfrm","enqueuedNodeIndex":20,"enqueueingNodeAnnotation":"ScriptAssemblies","enqueueingNodeIndex":5}{

 

any updates on this??

 

Nope, I have had this problem for almost a month now and I am unable to develop. I don't even remember what I was working on in my project last :/

 

I tried to contact Lucas on this issue but unfortunately have not gotten a reply back yet.

 

is unity still usable? if i cant fix this issue

 

Hi I updated to 2022.1.4f1 and I got these errors. I also get this with the 2021.3.41f version. Does anyone know how to fix this? I'm aware that unity has already seen this issue and are getting to work on it, hope there is a solution soon!

I have completely reinstalled Unity twice. The same error for both versions 2021.3.4f1 and 2022.1.4f1 still persist.

(Error1.png is Version 2022.1.4f1)

I also saw that some tried deleting the Library/Bee thingy. The Library/Bee pops up a lot in my output log I will try deleting it to see if that resolves the issue. I'm also seeing the word "Tundra" popping up in the error output, not sure if it is related to RafaelGomes00's error. I'm assuming it is.

 

For me, this error occurs whenever I try to use the IL2CPP backend. When using Mono, the builds work fine. When I switch to il2cpp or when I switch to a webGL build which seems to always use il2cpp these errors pop up at what seems to be the end of the build process - which makes troubleshooting really troublesome because I have to wait 5 minutes after clicking on build for it to tell me "Oh btw, it doesnt work."

Using Unity 2021.3.4f1.

Deleting the Library/Bee folder did not fix the issue.
Deleting the whole library folder did not fix the issue.

 

[UPDATE] : I managed to solve the issue ONLY AFTER DOWNGRADING TO 2020.3.35f1, to which I got NO MORE console errors. The 2020 Unity Editor version works really similar to the 2022 Unity Editor version. I'm not a 100% sure what the differences are but I don't seem to see any coding disadvantages in the 2020 unity editor version, it works perfectly fine.

I have downloaded both Visual Studios 2022 and 2019 in my computer. I am able to code C# completely fine in the 2020 Unity Editor.

Lokiran, I tried to code a simple game in 2d but the 2022.1.4f1 but there was a package error, then I couldn't progress any further. So for now I guess we can temporarily switch to the 2020.3.35f1 version until I manage to find another solution / Unity manages to solve this issue.











In the 2020 Editor Version, I DO NOT bump into any of the issues seen in the images above.

 

Hi @Lucas-Meijer, I've just dm-ed you, we can chat further from there

 

Hello @Lucas-Meijer,
I am facing similar issue. This issue started coming after I upgraded my unity version from 2019 to 2021lts - 2021.3.3f1. If any help on how to resolve it, that would be great man.

 

@Lucas-Meijer

We found that this issue was being caused by pending Windows Security Updates. It appears that the Command Prompt may become locked down until the security update is applied and machine has been rebooted. So far we have had 5 people run into this issue today. Each time the problem was resolved after installing the security update and the machine was rebooted. Note that all of our machines are running Windows 10 currently.

This is not the first time we have ran into this issue. We have wasted a lot of time troubleshooting it (Reinstalling Unity, deleting the Bee & Library directory, fresh pull downs from SCM, etc). Looking back through our emails and chat logs, we also hit this issue right after several Tuesday Windows Security Updates.

This is the error we saw today until the security update was applied:

Internal build system error. Backend exited with code 2.
STDOUT:
[ 0/1333 0s] WriteText Library/Bee/artifacts/1900b0aE.dag/UnityEngine.TestRunner.rsp
[ 1/1333 0s] WriteText Library/Bee/artifacts/1900b0aE.dag/UnityEngine.UI.rsp
[ 2/1333 0s] WriteText Library/Bee/artifacts/1900b0aE.dag/UnityEditor.TestRunner.rsp
[ 3/1333 0s] WriteText Library/Bee/artifacts/1900b0aE.dag/UnityEditor.UI.rsp
[ 4/1333 0s] WriteText Library/Bee/artifacts/1900b0aE.dag/Unity.Fusion.CodeGen.rsp
STDERR:
tundra: error: Couldn't launch process with command line:
cmd.exe /c ""C:\Program Files\Unity\Hub\Editor\2021.2.12f1\Editor\Data\Tools\netcorerun\netcorerun.exe" "C:/Program Files/Unity/Hub/Editor/2021.2.12f1/Editor/Data/Tools/ScriptUpdater/ApiUpdater.MovedFromExtractor.exe" "Library\Bee\artifacts\mvdfrm\UnityEditor.DiagnosticsModule.dll_5333AF1DBA00ACEF.mvfrm" "C:\Program Files\Unity\Hub\Editor\2021.2.12f1\Editor\Data\Managed\UnityEngine\UnityEditor.DiagnosticsModule.dll""
errno: 0 (No error) GetLastError: 5 (0x00000005): Access is denied.