# Luoshuang's GPULightmass

**URL:** <https://forums.unrealengine.com/t/luoshuangs-gpulightmass/109474>\
**Category:** Rendering\
**Tags:** unreal-engine\
**Created:** [April 13, 2018, 5:44am UTC](https://forums.unrealengine.com/t/luoshuangs-gpulightmass/109474 "2018-04-13T05:44:47Z")\
**Posts on this page:** 1\
**Showing post:** 2144

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**Author:** ![Situx](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Situx](https://forums.unrealengine.com/u/Situx)\
**Post date:** [August 12, 2021, 12:46pm UTC](https://forums.unrealengine.com/t/luoshuangs-gpulightmass/109474/2144 "2021-08-12T12:46:41Z")

</div>

Looks like a couple of issues.

1. “7za is not recognized” looks like the script was not able to download the free 7zip.exe to decompress the files.
2. You maybe running the script in an unsupported version of UE4 (“Kernel version is unknown”

You can still try to install it, but I wouldn’t recommend it.

4.27 is unsupported on my script. Try manually installing. I haven’t got time to actually look into it.

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