I cannot build lighting in my current project.
11:08:42 PM: [Interface:TryOpenConnection] Local connection established
11:08:42 PM: [Job] Accepted Job 6EA303D6-423DED03-F75FCC83-D146DCEE
11:08:42 PM: [Job] Launched Job UnrealLightmass_2016-04-22_05-54-17_1333704-64bit.exe
11:08:42 PM: [Job] PID is 9600
11:08:42 PM: [Job] GUID is “6EA303D6-423DED03-F75FCC83-D146DCEE”
11:08:43 PM: LogLightmass:Display: Lightmass Win64 started on: EJ-PC. Command-line: 6EA303D6423DED03F75FCC83D146DCEE
11:08:43 PM: Lightmass Win64 started on: EJ-PC. Command-line: 6EA303D6423DED03F75FCC83D146DCEE
11:08:43 PM: LogLightmass:Display: Processing scene GUID: 6EA303D6423DED03F75FCC83D146DCEE with 4 threads
11:08:43 PM: Processing scene GUID: 6EA303D6423DED03F75FCC83D146DCEE with 4 threads
11:08:43 PM: Building static lighting…
11:08:43 PM: LogGenericPlatformMisc:Warning: Failed to determine engine directory: Defaulting to …/…/…/Engine/
11:08:43 PM: Failed to determine engine directory: Defaulting to …/…/…/Engine/
11:08:43 PM: [Job] Found a parent connection for PID 9600
11:08:43 PM: [Job] 3E3DB6A5 → 1D7A1243
11:08:43 PM: [Interface:TryOpenConnection] Local connection established
11:08:43 PM: LogUnrealMath:Error: FMatrix::InverseFast(), trying to invert a NIL matrix, this results in NaNs! Use Inverse() instead.
11:08:43 PM: FMatrix::InverseFast(), trying to invert a NIL matrix, this results in NaNs! Use Inverse() instead.
11:08:43 PM: LogOutputDevice:Warning: === Handled error: ===
11:08:43 PM:
11:08:43 PM:
11:08:43 PM:
11:08:43 PM: Ensure condition failed: false [File:d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\math\UnrealMatrix.h] [Line: 266]
11:08:43 PM:
11:08:43 PM: FMatrix::InverseFast(), trying to invert a NIL matrix, this results in NaNs! Use Inverse() instead.
11:08:43 PM:
11:08:43 PM: Stack:
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: KERNEL32.DLL
11:08:43 PM:
11:08:43 PM: ntdll.dll
11:08:43 PM:
11:08:43 PM: ntdll.dll
11:08:43 PM:
11:08:43 PM:
11:08:43 PM: === Handled error: ===
11:08:43 PM:
11:08:43 PM:
11:08:43 PM:
11:08:43 PM: Ensure condition failed: false [File:d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\math\UnrealMatrix.h] [Line: 266]
11:08:43 PM:
11:08:43 PM: FMatrix::InverseFast(), trying to invert a NIL matrix, this results in NaNs! Use Inverse() instead.
11:08:43 PM:
11:08:43 PM: Stack:
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass-Core.dll
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: UnrealLightmass.exe
11:08:43 PM:
11:08:43 PM: KERNEL32.DLL
11:08:43 PM:
11:08:43 PM: ntdll.dll
11:08:43 PM:
11:08:43 PM: ntdll.dll
11:08:43 PM:
11:08:43 PM:
11:08:43 PM: LogWindows:Error: Windows GetLastError: The operation completed successfully. (0)
11:08:43 PM: Windows GetLastError: The operation completed successfully. (0)
11:08:57 PM: [MaintainConnections] Detected dropped local connection, cleaning up (1D7A1243)
11:08:57 PM: [CloseConnection] Closing connection 1D7A1243 using handle 1D7A1243
11:08:57 PM: [CloseConnection] Connection confirmed for disconnection 1D7A1243
11:08:57 PM: [CloseConnection] Connection disconnected 1D7A1243
11:08:57 PM: [GetMessage] Safely returning to 1D7A1243 with no message
11:08:57 PM: [Job] Job has failed! Job executable didn’t exit cleanly. Exit code: -1073741819
11:08:57 PM: [CloseConnection] Closing connection 3E3DB6A5 using handle 3E3DB6A5
11:08:57 PM: [CloseConnection] Connection confirmed for disconnection 3E3DB6A5
11:08:57 PM: [CloseConnection] Closing orphaned Job (6EA303D6-423DED03-F75FCC83-D146DCEE)
11:08:57 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:08:57 PM: [MaintainConnections] Local connection has closed (1D7A1243)
11:08:57 PM: [MaintainConnections] Removed connection 1D7A1243
11:08:58 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:08:58 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:08:59 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:00 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:00 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:01 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:01 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:02 PM: [MaintainConnections] Connection 3E3DB6A5 is DISCONNECTING
11:09:02 PM: [CloseConnection] Connection disconnected 3E3DB6A5
11:09:02 PM: [GetMessage] Safely returning to 3E3DB6A5 with no message
11:09:02 PM: [MaintainConnections] Local connection has closed (3E3DB6A5)
11:09:02 PM: [MaintainConnections] Removed connection 3E3DB6A5
11:09:02 PM: [MaintainConnections] All connections have closed
Please assist.