If I open a fresh instance of the editor, make a new project based on the Blank template, create a hello_world_device, then I get no errors.
However, if I load an older project where the issue persists, it then affects all the other projects if I subsequently open them. I’ve attached the logs
I tried to delete the files in the directory you mentioned, including the directory specific to the troubled project, and that didn’t help.
UnrealEditorFortnite.log (3.3 MB)