Failed because this command failed to write the following output files error in new project

Boz0r · Jun 8, 2022

I'm trying to get back to Unity, but every time I open a project I get a boatload of errors, even with a completely new project, both 2D and 3D.

Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.CoreModule.dll_37A4F7C4AD67D93F.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.DeviceSimulatorModule.dll_8D814F19718ED1B2.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.DiagnosticsModule.dll_967C848EF7304780.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.GraphViewModule.dll_6434B20F6E457B57.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.WindowsStandalone.Extensions.dll_5AAC95F538FDF351.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.Graphs.dll_E2B2E3DEEF866471.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ClothModule.dll_4F7C9314C09CC893.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.UI.dll
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.UI.pdb
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.UI.ref.dll
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.XRModule.dll_066A9EF6FE764E35.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.TestRunner.dll
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.TestRunner.pdb
Library\Bee\artifacts\1900b0aEDbg.dag\UnityEngine.TestRunner.ref.dll
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.dll_76E6B745D69EEC26.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.PackageManagerUIModule.dll_8B5362A386555DDB.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.VideoModule.dll_0D9DBA84A9120554.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.WindModule.dll_D114A63FE6A3C2D3.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.VRModule.dll_D3ABDBF2753C00D7.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.VirtualTexturingModule.dll_FA59CBA7D07C4E88.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.VFXModule.dll_068ACAC463EDD2A1.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.VehiclesModule.dll_28E155033DDE2CA2.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityWebRequestWWWModule.dll_4D62F1F4B76D4C32.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityWebRequestTextureModule.dll_1BC5D80F1BD5D5B6.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UIElementsNativeModule.dll_D5CD1738F7CDCDFD.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityWebRequestAudioModule.dll_B6AACB3BD15A8DC1.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.SubstanceModule.dll_C3FA2FD1E37D0549.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityWebRequestAssetBundleModule.dll_15650989D70EB79D.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AccessibilityModule.dll_34485B49FE7D8F17.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TLSModule.dll_85AC32558D806934.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.UnityConnectModule.dll_A7010E2A3E722775.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AIModule.dll_8566173F773A75B3.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.UIServiceModule.dll_F1AF708ECA3544A5.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.UIElementsModule.dll_0E80CDBDA0B9A61B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.TextCoreFontEngineModule.dll_BC58FAD4252C17DD.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.UIElementsSamplesModule.dll_05C3A5101025F602.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.TextCoreTextEngineModule.dll_04413145B4AFD0FB.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.UIBuilderModule.dll_B8BD5F2BE0FDF48B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.SceneTemplateModule.dll_01A2EFB2FE07677A.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.QuickSearchModule.dll_218C059C500743D9.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityConnectModule.dll_9460923938FA2820.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEditor.PresetsUIModule.dll_1F9AEAF1709DD35C.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityAnalyticsModule.dll_94A5C74A4F0E9BCC.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityTestProtocolModule.dll_C1865B026A214B58.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityCurlModule.dll_65D6CF69B8B641EA.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UnityWebRequestModule.dll_10BF16E56E6331A9.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.LocalizationModule.dll_64EA4D928775ED34.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UIModule.dll_80D9B56CD3817B5F.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UmbraModule.dll_6368E23273A69522.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UIElementsModule.dll_0F2F3B05A2FDBF66.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.UNETModule.dll_ED6C1300A27C39E3.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.InputModule.dll_4F09FDCA5CB80E53.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TextRenderingModule.dll_D7870415C95C9BF8.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TilemapModule.dll_D98856FC7ED45A57.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TextCoreFontEngineModule.dll_3AB876273829D6A8.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TerrainPhysicsModule.dll_7580FF53BC2A445D.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TextCoreTextEngineModule.dll_82A0AC98C7AD8FC6.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.SpriteMaskModule.dll_A043733BD1899B5C.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.SpriteShapeModule.dll_7ED665E8681030D5.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.GameCenterModule.dll_B71700ABB01A05E2.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.StreamingModule.dll_E74F1B88982A073B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.SubsystemsModule.dll_0AF0D99D9FD1836F.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.TerrainModule.dll_3A8BEF7B6717794E.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.SharedInternalsModule.dll_83314E10DA9C927A.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ProfilerModule.dll_E36494BA5D0DE414.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.PhysicsModule.dll_2045740C91593060.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ScreenCaptureModule.dll_AE47920B12251C03.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.RuntimeInitializeOnLoadManagerInitializerModule.dll_3B156701BAD6DC5B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.Physics2DModule.dll_7F601E28E99F4792.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.PerformanceReportingModule.dll_3EAE775D4AEFC329.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.JSONSerializeModule.dll_945FE485FDB8EFA1.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.IMGUIModule.dll_20F3D580ACB17D90.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.CrashReportingModule.dll_21F40D3434D5BE42.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.InputLegacyModule.dll_F6BA53AC4A5FAEBC.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ParticleSystemModule.dll_75065680A2E749D0.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.GIModule.dll_1DA2604D12E95DCD.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ImageConversionModule.dll_FF200F3B636E972A.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.HotReloadModule.dll_B402EC3E23D56B7F.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.DSPGraphModule.dll_B66FBCED36152E28.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.GridModule.dll_3836E7056DC1DA61.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ClusterRendererModule.dll_932E118AE149DF36.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.dll_A98AFE1E3512790B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ClusterInputModule.dll_269D833FEFF9FA3B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AssetBundleModule.dll_6575388DB26DF8CB.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.CoreModule.dll_5AC5CB17556D446A.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.DirectorModule.dll_B11E5B83C3B45D07.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AudioModule.dll_E8943619E67FE9AF.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\Unity.Plastic.Newtonsoft.Json.dll_52A24E6B1B6D66AA.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AndroidJNIModule.dll_8CC9B690E9D914F1.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\Unity.Plastic.Antlr3.Runtime.dll_935CE981FA21575B.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.ARModule.dll_3ED8DC42D457D47C.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.AnimationModule.dll_32BA2E3848A24FFD.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\Unity.Analytics.Tracker.dll_6E891A3DB9E36959.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\Unity.Analytics.StandardEvents.dll_523DF1E3710D4E74.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\Unity.Analytics.Editor.dll_7E7016E79877D8D8.mvfrm
Failed because this command failed to write the following output files:
Library\Bee\artifacts\mvdfrm\UnityEngine.NVIDIAModule.dll_B154A7C62E598A16.mvfrm
Click to expand...

The only possible solution I've found online is this one. All other solutions seems to be on mac.

I've tried uninstalling everything Unity related, cleaned up AppData and ProgramData, and used CCleaner to clean up regedit before reinstalling. I've also tried installing it both on an HDD and an SSD, with projects on both drives.

CodeSmile · Jun 8, 2022

„Failed to write“ errors always make me suspect file/folder permission issues first, secondly not enough disk space second or possibly restricted folders (such as C:\Program Files or Windows).

Try create projects under the current user‘s Documents folder and do no run Unity (Hub) with elevated access (ie not „Run as Administrator“).

Boz0r · Jun 8, 2022

SteffenItterheim said: ↑

„Failed to write“ errors always make me suspect file/folder permission issues first, secondly not enough disk space second or possibly restricted folders (such as C:\Program Files or Windows).

Try create projects under the current user‘s Documents folder and do no run Unity (Hub) with elevated access (ie not „Run as Administrator“).
Click to expand...

Pretty sure I've already tried that, but I'll give it another shot later. I'm in the process of deleting everything Unity-related right now.

Boz0r · Jun 8, 2022

I tried it, and it didn't make any difference. I tried installing the 2019 LTS version and made a new project with that, which gave me some other errors instead:

Copying assembly from 'Temp/UnityEngine.TestRunner.dll' to 'Library/ScriptAssemblies/UnityEngine.TestRunner.dll' failed
Copying assembly from 'Temp/UnityEngine.UI.dll' to 'Library/ScriptAssemblies/UnityEngine.UI.dll' failed
Click to expand...

So it looks like some kind of permission issue.

Boz0r · Jun 9, 2022

I finally fixed it by using regedit. The following key had some gibberish values that I removed:

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Command Processor\Autorun

Doing so, though, caused Windows to not start up explorer.exe on startup. It gave me a command prompt instead, so I could easily start it up. I fixed that problem by adding 'explorer.exe' to the following key.

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell

I hope others can use this information.

unity_r5HlRUDMk1OExA · Nov 6, 2022

Boz0r said: ↑

I finally fixed it by using regedit. The following key had some gibberish values that I removed:

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Command Processor\Autorun

Doing so, though, caused Windows to not start up explorer.exe on startup. It gave me a command prompt instead, so I could easily start it up. I fixed that problem by adding 'explorer.exe' to the following key.

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell

I hope others can use this information.
Click to expand...

Your a life saver bro Thx!

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