Problem with errors upon opening new projects

[Quetzalcodename]

Hey @AKU66,

If that is the case there may be errors with your installation of Visual studios. Check out this thread that throws the same errors as you. There may be components you are needing to install:

Getting these CoreNet.h errors , was working fine the previous day. Anyways to solve it?

Ok it seems like I fixed the problem by installing the rest of the required components in Visual Studio 2022. At least I can build my game project now without errors. Haven’t tried to rebuild the whole engine because that’s still working for me since the last time I build it with VS2022. I installed the components explained in this video (link includes timecode): How to Setup Visual Studio 2022 for Unreal Engine - YouTube

Hopefully the above solution works for you!