UE 4.12.5 PackagingResults: Error Unknown Cook Failure

Hey guys, I’ve got a strange packing error I’m not sure how to suss out.

I’m simply trying to build my UE 4.12.5 project but I get the error message in the attachments of this Answer thread. It’s just showing the warnings & Errors, I can certainly add the whole output log if people need it.

I’ve also attached the packaging settings as well & it’s only for Windows 10 64-bit output.

This is for a University submission but I can easily screen record the viewport editor if needs be but a nice .exe would be awesome if you guys know whats up.

Many thanks in advance!

The Floating Platypus,

  • Try to delete your Intermediate and Saved folders from the project.
  • Remove and reimport the assets back into your project.
  • If that doesn’t work, please open the asset and edit something, save it and try again.

If that does not work, please upload the full error output log as a .txt file.

Thank you!

Hey The Floating Platypus,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!