From 4.10 to 4.11 convert error


Since 3 Days i’am trying to convert my project froim 4.10 to 4.11, but i get always this error.

The project could not be compiled. Would you like to open it in Visual Studio?

Running C:/Program Files (x86)/Epic Games/4.11/Engine/Binaries/DotNET/UnrealBuildTool.exe References Development Win64 -project=“D:/Neuer Ordner/References neu27.03 4.11 - 2/References.uproject” -editorrecompile -progress -noubtmakefiles -NoHotReloadFromIDE -2015
@progress push 5%
Parsing headers for ReferencesEditor
Running UnrealHeaderTool “D:\Neuer Ordner\References neu27.03 4.11 - 2\References.uproject” “D:\Neuer Ordner\References neu27.03 4.11 - 2\Intermediate\Build\Win64\ReferencesEditor\Development\UnrealHeaderTool.manifest” -LogCmds=“loginit warning, logexit warning, logdatabase error” -Unattended -WarningsAsErrors -installed
LogCompile:Error: Failed to initialize the engine (PreInit failed).
Error: Failed to generate code for ReferencesEditor - error code: CrashOrAssert (3)
UnrealHeaderTool failed for target ‘ReferencesEditor’ (platform: Win64, module info: D:\Neuer Ordner\References neu27.03 4.11 - 2\Intermediate\Build\Win64\ReferencesEditor\Development\UnrealHeaderTool.manifest).

Hope you guys could help my