I complie unreal engine used source from github. unreal version is 4.16.1.
I complie complete, create a new C++ project. name is TestPackage,
But I package project failed. Package platform is win64.
Packaging or building project? They’re different processes. B-)
About your case: check what you have this files on your local drive. I am more than sure you’re not followed the Epics doc how to build Unreal Engine from Source (did you run Setup.bat first?)
You can’t package from the Editor if you are running the Editor with Visual Studio attached as that locks various DLLs and such. Launch the Editor without debugging (SHIFT+F5 from within VS) and it’ll work.