Fatal error!:Error: UE4Editor-Core.dll!0x0000000097E81B43

Development Programming & Scripting
1

Error/Crash on starting my project. Worked fine last night, now cannot open this morning.
Have verified in launcher and updated GPU driver + restart.

[2017.03.15-12.01.56:758][  0]LogWindows:Error: === Critical error: ===
[2017.03.15-12.01.56:758][  0]LogWindows:Error: 
[2017.03.15-12.01.56:758][  0]LogWindows:Error: Fatal error!
[2017.03.15-12.01.56:758][  0]LogWindows:Error: 
[2017.03.15-12.01.56:758][  0]LogWindows:Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000
[2017.03.15-12.01.56:758][  0]LogWindows:Error: 
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-Core.dll!0x0000000097E81B43
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABBEF17
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AA9BBE3
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB05DA9
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB025CE
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABE2740
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABE1CED
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-UnrealEd.dll!0x000000008E350443
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-UnrealEd.dll!0x000000008E31ADF8
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-UnrealEd.dll!0x000000008DF6617B
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-UnrealEd.dll!0x000000008E336341
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-UnrealEd.dll!0x000000008E2F894A
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AA10C07
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009A9EB056
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAEE15A
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC820E
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE2791
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC7289
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC864B
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE4D36
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC4922
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:758][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE06E4
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC46DC
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC93C6
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AA22D0F
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AA21AB5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAEE14F
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC820E
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE2791
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC7289
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAC864B
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE4D36
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC4922
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE06E4
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC46DC
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE06E4
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC46DC
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE06E4
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC46DC
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAE06E4
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC46DC
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009ABC3ED7
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10834
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB10A85
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F565
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0F3A8
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AAD1E6A
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AB0E5C5
[2017.03.15-12.01.56:759][  0]LogWindows:Error: UE4Editor-CoreUObject.dll!0x000000009AACA6EB
[2017.03.15-12.01.56:759][  0]LogWindows:Error: 
[2017.03.15-12.01.56:787][  0]LogExit: Executing StaticShutdownAfterError
[2017.03.15-12.01.56:789][  0]LogWindows: FPlatformMisc::RequestExit(1)
[2017.03.15-12.01.56:789][  0]Log file closed, 03/15/17 12:01:56
2

Hi Sulli,

This was the last warning before the crash:

[2017.03.15-12.01.56:010][  0]LogBlueprint:Warning: [Tower_NPC_Animation_Blueprint] 'HasWeapon' variable not found. Base class was probably changed.

An error with like this can cause your project to fail to start. I recommend changing the start up map in the DefaultEngine.ini and loading an earlier version of your project from the Saved folder in your Project Folder if one exists.