Platform Cook error when preparing platform data when Publishing Project

PAK Prime
Fri, 25 Jul 2025 18:22:56 +0000
Issues and Bug Reporting

Summary

I am about to publish my project when i receive

Switch: Failed to prepare data for PROJECTNAME
ValkyriePreparedPlatformData: Error: Switch: Failed to prepare data for PROJECTNAME.

I edit afterwards by removing useless verse devices and codes and rebuilt and get

Android: Failed to prepare data for PROJECTNAME
Switch: Failed to prepare data for PROJECTNAME

when publishing project, preparing platform data for these platforms.

Additionally it says:

Project failed to cook (see Message Log)

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Publishing

Steps to Reproduce

Launch session
Perform successful memory calculation
Publish project

Expected Result

Redirect to creator portal and be able to submit an island.

Observed Result

Error logs above and additional popup dialog

Platform(s)

windows

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Additional Notes

I tried saving work, removing verse scripts, optimizing my project, resizing textures to be bearable on Android and switch devices etc.

Sometimes Android also fails, but all the time Switch fails.

3 posts - 2 participants