The project won't build.


Error message MSB3073:
““C:\Program Files\Epic Games\UE_5.4\Engine\Build\BatchFiles\Build.bat” ball_Rnd02Editor Win64 Development -Project=“D:\UE_2405\ball_Rnd02\ball_Rnd02.uproject” -WaitMutex -FromMsBuild -architecture=x64” exited with code 1 (code: 8).
ball_Rnd02: C:\Program Files\Microsoft VisualStudio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets 44

When trying to run the project, I keep getting the error “(Project Name) could not be compiled. Try rebuilding from source manually.” I tried building the solution in Visual Studio 2022, but the same error keeps appearing. I have tried several solutions found online, such as running as administrator, deleting the folder and regenerating, but nothing has worked. I really need help as I must get the project to open! Please help!

Could it be that non English language is interfering with the compile? Is that Korean?

Maybe try adding English to your system and swapping to see it it’s not interfering with the paths. (unreal hates non English paths and I’m not sure how it interprets the folder dividers in the current state)

What does your solution explorer look like. Do you have your game project set as default?

I followed your advice and removed the underscores, and I checked again to see if there were any places where Korean characters were used, but there were no issues at all.

Also, regarding the default settings you mentioned, I installed the Unreal Engine plugin and worked with it, so I don’t think that’s the problem.

But I still don’t understand why this keeps happening. Please help me!


What does your output window show?