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why is my project crashing on open

was working on a project on friday, came back in on monday and my level wont open anymore, it crashes when trying to load. then i get a long error report

**MachineId:897CEC694C58BDFB42E01F9E85BF4C85 EpicAccountId:

Unknown exception - code 00000001 (first/second chance not available)

"Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp] [Line: 1272] Failed to load spec

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:355] UE4Editor_Engine!LoadSpecialMaterial() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\engine\private\unrealengine.cpp:1272] UE4Editor_Engine!UEngine::InitializeObjectReferences() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\engine\private\unrealengine.cpp:1341] UE4Editor_UnrealEd!UEditorEngine::InitializeObjectReferences() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorengine.cpp:536] UE4Editor_Engine!UEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\engine\private\unrealengine.cpp:775] UE4Editor_UnrealEd!UEditorEngine::InitEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorengine.cpp:425] UE4Editor_UnrealEd!UEditorEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorengine.cpp:580] UE4Editor_UnrealEd!UUnrealEdEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealedengine.cpp:48] UE4Editor!FEngineLoop::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launchengineloop.cpp:2026] UE4Editor_UnrealEd!EditorInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealed.cpp:63] UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launch.cpp:133] UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]

i have no idea what to do about this and would really appreciate if someone knew how to fix this.

Product Version: UE 4.8
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asked Oct 26 '15 at 08:55 PM in Bug Reports

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avatar image Sean L ♦♦ STAFF Oct 27 '15 at 01:04 PM


In order to attempt to reproduce your crash, I will require a bit more information:

  • Could you attempt to reproduce the crash, and ensure that you send the Crash Report when the window appears?

  • Could you post your logs?

One thing you could try is to go into your project folder and delete the Intermediate and Saved folders, and then see if the crash still occurs.

avatar image VISHUL89 Jul 13 '16 at 12:59 PM

My project is crashing when launch the project

avatar image Sean L ♦♦ STAFF Jul 13 '16 at 01:04 PM


Please create a new thread in the bug reports section so that we can investigate the issue separately.

Thank you

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I am marking this topic as resolved as I have not heard back from you in a few days. If the problem is still occurring, feel free to respond to this answer and I'll be glad to help.

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answered Nov 03 '15 at 03:52 PM

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Sean L ♦♦ STAFF
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