Failed to package project "Unknown Cook Failure"

Hi,

I got this error each time i’m trying to package my project and don’t understand what is the problem.
I can play the project in the editor, each level is working fine but i can’t get it to cook properly tried in HTML5 and got an error too.
I did another project on UE4.17 and never had this issue, i’m a bit confused here and don’t know what i should do.

Here is the log file https://reasontech.fr/bin/UAT_Log.txt

Edit : I tried to cook my 4.17 project on UE4.18 that is still on my computer and it worked perfectly. While i can’t cook it on 4.19. Seem the issue is specific to the last version.

I really hate this new Unreal version, many many issues with it while all was going smoothly with 4.18 and before.

I think most of the troubles come from the way it stores assets. I wanted to change a few assets from directory lately and it just made UE crash. When opening again, many things were just broken and the project isn’t working correctly at all, many assets have been just dropped, some are invisible in the editor but still present on the hard disk and if you try to put them back in place references are not valid anymore.

I’m pretty sure cooking issues come from this kind of troubles too and there is no way to ask it to clean the mess he do all the time with his multiples references for a single object.

If people want to know.

I created a new empty project with no content and migrated the assets one by one to this new project.
Been able to cook it in the new project …

You can run fix up redirections in folder instance.