# project is not valid **URL:** \ **Category:** Getting Started & Setup\ **Tags:** unreal-engine, fortnite-creative, unreal-editor-for-fortnite, crash, question, fortnite\ **Created:** [March 27, 2023, 3:51pm UTC](https://forums.unrealengine.com/t/project-is-not-valid/827830 "2023-03-27T15:51:38Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kishiimu](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/kishiimu/32/953627_2.png) [@kishiimu](https://forums.unrealengine.com/u/kishiimu)\ **Post date:** [March 27, 2023, 3:51pm UTC](https://forums.unrealengine.com/t/project-is-not-valid/827830/1 "2023-03-27T15:51:38Z")
![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/9/c/b9c0a120474af0fe0b842db900ddcb7104e6eee6.png) when starting the session, the error “project is not valid” is returned. What could it be and how to fix it? ---
**Author:** ![Astrotronic](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/astrotronic/32/1194566_2.png) [@Astrotronic](https://forums.unrealengine.com/u/Astrotronic)\ **Post date:** [March 27, 2023, 4:06pm UTC](https://forums.unrealengine.com/t/project-is-not-valid/827830/2 "2023-03-27T16:06:44Z")
Hi Kishiimu, If you click ‘Show Output Log’, are there any lines in the output log that begin with “Error:” ? If you see messages about “Found disallowed object type” it’s probably related to [this problem](https://forums.unrealengine.com/t/asset-validation-issues/817504). Welcome to the Forums. ---
**Author:** ![ZargonDaWiked](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ZargonDaWiked](https://forums.unrealengine.com/u/ZargonDaWiked)\ **Post date:** [March 27, 2023, 6:59pm UTC](https://forums.unrealengine.com/t/project-is-not-valid/827830/3 "2023-03-27T18:59:45Z")
Seems to be a common issue. I believe the short term fix is to use the error code from output log and search items in outliner. Delete offending assets and hope for the best.