Seems like something with the engine files but im not 100% on that
you’ve tried a lot of the methods that i would have recommended only one thing comes to mind that i would also try
Copy your content folder somewhere
Also backup whole project
Completely uninstall UE and Epic
actually restart computer for good measure
Put your copied content folder into a new project
See if works
if that doesn’t work the only sure method i know of is to open new project and broken project at the same time and manually copy things over ( like select everything in BP and paste into other BP ) you’ll have to change many a setting that you changed previously but hey it would work if the project is worth the effort
also maybe try uninstalling your IDE and reinstalling if you did any c++ programming
also make sure you have the necessary windows packages in your IDE
if your a c++ kinda guy you could also look at the file at the location that it mentions and see whats up with it… if you tried to compile in the IDE it’ll likely give you a similar but different error
every error after those first few in UE is just caused by the first one so looking at it in IDE would tell you more specifically
if the option is available try the project on another computer as well
this is just stuff that i’d try and generally advice i can’t say for sure that you’d get anything for these efforts
BACKUP before you do ANY of this as its the equivalent of open heart surgery on your project