“ΕΓΓΡΑΦΑ” i would say that you have some “special character” in your project path ( “E:/SystemFiles/ΕΓΓΡΑΦΑ/Unreal Projects/MyProject3/MyProject3.uproject” try to move it to a folder without " special characters" to a simple a-z chars folder name
Running E:/Programm Files/UNREAL/UE_4.16/Engine/Binaries/DotNET/UnrealBuildTool.exe MyProject3 Development Win64 -project=“E:/SystemFiles/ΕΓΓΡΑΦΑ/Unreal Projects/MyProject3/MyProject3.uproject” -editorrecompile -progress -NoHotReloadFromIDE
Performing full C++ include scan (building a new target)
Creating makefile for MyProject3 (no existing makefile)
@progress push 5%
Parsing headers for MyProject3Editor
Running UnrealHeaderTool “E:\SystemFiles????\Unreal Projects\MyProject3\MyProject3.uproject” “E:\SystemFiles????\Unreal Projects\MyProject3\Intermediate\Build\Win64\MyProject3Editor\Development\MyProject3Editor.uhtmanifest” -LogCmds=“loginit warning, logexit warning, logdatabase error” -Unattended -WarningsAsErrors -installed
Reflection code generated for MyProject3Editor in 8.7317538 seconds
@progress pop
Performing 8 actions (4 in parallel)
[2/8] Resource ModuleVersionResource.rc.inl
[3/8] Resource PCLaunch.rc
SharedPCH.Engine.cpp
MyProject3.cpp
c1xx: fatal error C1083: Cannot open source file: ‘E:\SystemFiles?a???\Unreal Projects\MyProject3\Source\MyProject3\MyProject3.cpp’: No such file or directory
MyProject3GameModeBase.cpp
MyProject3.generated.cpp
c1xx: fatal error C1083: Cannot open source file: ‘E:\SystemFiles?a???\Unreal Projects\MyProject3\Intermediate\Build\Win64\UE4Editor\Inc\MyProject3\MyProject3.generated.cpp’: No such file or directory
c1xx: fatal error C1083: Cannot open source file: ‘E:\SystemFiles?a???\Unreal Projects\MyProject3\Source\MyProject3\MyProject3GameModeBase.cpp’: No such file or directory
ERROR: UBT ERROR: Failed to produce item: E:\SystemFiles????\Unreal Projects\MyProject3\Binaries\Win64\UE4Editor-MyProject3.dll
Total build time: 44.42 seconds (Local executor: 0.00 seconds)
ty a lot for the comment problem fixed