# FAILED TO BUILD HLODS

**URL:** <https://forums.unrealengine.com/t/failed-to-build-hlods/2025451>\
**Category:** Rendering\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, editor, question, fortnite\
**Created:** [September 18, 2024, 2:59am UTC](https://forums.unrealengine.com/t/failed-to-build-hlods/2025451 "2024-09-18T02:59:28Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**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:** [September 18, 2024, 3:51pm UTC](https://forums.unrealengine.com/t/failed-to-build-hlods/2025451/5 "2024-09-18T15:51:27Z")

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hi @Hardcawcanary ,  
Well there is a YouTube video on FN and HLOD and the first thing is Cell Size is not Power of 2

[Get 200k Island Memory using HLODs in UEFN! (youtube.com)](https://www.youtube.com/watch?v=mjhfoiUylwA&t=123s)

Here is my way to get the correct Power of 2 Cell size

 ![HLODcellPowerOfTwo](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/a/2/3a2f40804f482394a9accc5ebe80b67edc4bcea5.png)

This just adds another layer have to have an Excel Spreadsheet to calculate the nearest Power of 2

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