Do somebody know how to fix this error?

Hello, I tried to generate a C++ Project (Third Person) today, but i get the error

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

Running C:/Program Files/Epic Games/UE_4.17/Engine/Binaries/DotNET/UnrealBuildTool.exe AnoterWorld Development Win64 -project="C:/Users/Paul/Documents/Unreal Projects/AnoterWorld/AnoterWorld.uproject" -editorrecompile -progress -NoHotReloadFromIDE
Performing full C++ include scan (building a new target)
Creating makefile for AnoterWorld (no existing makefile)
@progress push 5%
Parsing headers for AnoterWorldEditor
  Running UnrealHeaderTool "C:\Users\Paul\Documents\Unreal Projects\AnoterWorld\AnoterWorld.uproject" "C:\Users\Paul\Documents\Unreal Projects\AnoterWorld\Intermediate\Build\Win64\AnoterWorldEditor\Development\AnoterWorldEditor.uhtmanifest" -LogCmds="loginit warning, logexit warning, logdatabase error" -Unattended -WarningsAsErrors -installed
Reflection code generated for AnoterWorldEditor in 17,9538596 seconds
@progress pop
Distributing 11 actions to XGE
Fatal Error: Failed to start build.
Failed to connect to Build Service (on local machine): Server is not reachable

ERROR: UBT ERROR: Failed to produce item: C:\Users\Paul\Documents\Unreal Projects\AnoterWorld\Binaries\Win64\UE4Editor-AnoterWorld.dll
Total build time: 27,03 seconds (XGE executor: 0,00 seconds)

How can i fix this error?