Since this morning, when I open my project, it gets to 80%, then it crashes and gives me this error message. I really dont want to have to restart, or abandon this project because of this. Please help! Thanks.
Ive had that issue and in my case it was caused by a certain asset. Tree Asteria Balsa Tree C
It would only cause issues on some systems.
If you arent using this asset i would suggest trying to delete intermediate files since it sounds like the issue could be caused by the crash.
Other things to try are making sure your graphics drivers are updated and resetting settings in nvidia control panel.
If youre using version control the easiest way is probably to just delete and redownload the project.
I know theres some intermediate files in AppData\Local\UnrealEditorFortnite\Intermediate
Sorry i cant be of more help.