# Valkyrie Validation Error **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** error, unreal-editor-for-fortnite, question, fortnite\ **Created:** [April 8, 2023, 1:26pm UTC](https://forums.unrealengine.com/t/valkyrie-validation-error/881493 "2023-04-08T13:26:59Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![SupportiveEntity](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@SupportiveEntity](https://forums.unrealengine.com/u/SupportiveEntity)\ **Post date:** [April 8, 2023, 1:55pm UTC](https://forums.unrealengine.com/t/valkyrie-validation-error/881493/2 "2023-04-08T13:55:26Z")
Hey there @Dinatox07Twitch! Welcome to the community! Was this meant to be posted on the Unreal Engine for Fortnite (UEFN) side of the forums? If so it seems like this thread might help out: > [@When importing buildings directly from fortnite in flying man mode the project does not pass validation and does not start giving error messages](https://forums.unrealengine.com/t/when-importing-buildings-directly-from-fortnite-in-flying-man-mode-the-project-does-not-pass-validation-and-does-not-start-giving-error-messages/832301/12): > > For anyone else that sees this thread with Validation errors related to Physics Materials: The issue stems from placing assets in Live Edit rather than UEFN. If you place an asset with foliage or some cloth related asset in Live Edit and then exit Live Edit you might hit this issue. My repro steps were: Open Project Launch Live-Edit Add any prefab that has an asset that references a Physics Material Logout of Live Edit (Close Fortnite client) Try to launch session in UEFN again Hit validatio… Also if this was meant for the fortnite side, it seems you posted on the Unreal Engine portion of the forums and I can move the post if you’d like. --- _[View the full topic](https://forums.unrealengine.com/t/valkyrie-validation-error/881493)._