# Project validation failed **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\ **Created:** [October 6, 2024, 9:01pm UTC](https://forums.unrealengine.com/t/project-validation-failed/2056347 "2024-10-06T21:01:16Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Dearies](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Dearies](https://forums.unrealengine.com/u/Dearies)\ **Post date:** [October 6, 2024, 9:01pm UTC](https://forums.unrealengine.com/t/project-validation-failed/2056347/1 "2024-10-06T21:01:16Z")
### Summary i cant launch my uefn session at all, it keeps saying validation failed and my island I’ve spent countless hours on is basically non functional because of this. ### Please select what you are reporting on: Creative ### What Type of Bug are you experiencing? Other ### Steps to Reproduce everytime i load the island i can edit it on uefn as much as I like, but as soon as I click launch session it doesn’t work, it just says validation failed ### Expected Result usually it opens fortnite, and i can test the game and stuff ### Observed Result it just says validation failed and i cant do anything, and a list of errors ### Platform(s) Pc ### Additional Notes here is the output log ---
**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\ **Post date:** [October 6, 2024, 11:05pm UTC](https://forums.unrealengine.com/t/project-validation-failed/2056347/2 "2024-10-06T23:05:10Z")
hi @Dearies This post may help when similar thing happened [31.20 [Solved] UEFN Fix Validation Error pop up wont “Run” ](https://forums.unrealengine.com/t/31-20-solved-uefn-fix-validation-error-pop-up-wont-run/2024338)