[2015.11.10-09.13.50:030][  0]LogWindows:Error: Windows GetLastError: Der Vorgang wurde erfolgreich beendet. (0)
[2015.11.10-09.15.16:618][  0]LogWindows: === Critical error: ===
Fatal error!

KERNELBASE.dll
UE4Editor-Core.dll!FOutputDeviceWindowsError::Serialize() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor-Core.dll!FOutputDevice::Logf__VA() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\core\private\misc\outputdevice.cpp:138]
UE4Editor-CoreUObject.dll!UPackage::SavePackage() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\coreuobject\private\uobject\savepackage.cpp:3604]
UE4Editor-UnrealEd.dll!UEditorEngine::SavePackage() [c:\ue4.9_source\unrealengine-4.9\engine\source\editor\unrealed\private\editorengine.cpp:3778]
UE4Editor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackage() [c:\ue4.9_source\unrealengine-4.9\engine\source\editor\unrealed\private\cookontheflyserver.cpp:2582]
UE4Editor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide() [c:\ue4.9_source\unrealengine-4.9\engine\source\editor\unrealed\private\cookontheflyserver.cpp:2099]
UE4Editor-UnrealEd.dll!UCookCommandlet::NewCook() [c:\ue4.9_source\unrealengine-4.9\engine\source\editor\unrealed\private\commandlets\cookcommandlet.cpp:1214]
UE4Editor-UnrealEd.dll!UCookCommandlet::Main() [c:\ue4.9_source\unrealengine-4.9\engine\source\editor\unrealed\private\commandlets\cookcommandlet.cpp:557]
UE4Editor-Cmd.exe!FEngineLoop::PreInit() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\launch\private\launchengineloop.cpp:1636]
UE4Editor-Cmd.exe!GuardedMain() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\launch\private\launch.cpp:110]
UE4Editor-Cmd.exe!GuardedMainWrapper() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor-Cmd.exe!WinMain() [c:\ue4.9_source\unrealengine-4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]
UE4Editor-Cmd.exe!__tmainCRTStartup() [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
kernel32.dll
ntdll.dll
ntdll.dll