# Does UE compilation require Qt 5?

**URL:** <https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816>\
**Category:** Programming & Scripting\
**Tags:** engine-compile, unreal-engine, question\
**Created:** [July 15, 2025, 6:54pm UTC](https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816 "2025-07-15T18:54:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![RokeJulianLockhart](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/rokejulianlockhart/32/973764_2.png) [@RokeJulianLockhart](https://forums.unrealengine.com/u/RokeJulianLockhart)\
**Post date:** [July 15, 2025, 6:54pm UTC](https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816/1 "2025-07-15T18:54:54Z")

</div>

> [@How to build UE 5.1 from source on linux detecting the right engine version](https://forums.unrealengine.com/t/how-to-build-ue-5-1-from-source-on-linux-detecting-the-right-engine-version/754249/1):
>
> Run `./Setup.sh`.

During this, I saw some errata (chronologically undermentioned):

1. 

2. 

> Removing corrupt toolchain and redownloading

This probably isn’t of _any_ importance, considering that UE remediated it.

3. 

> `/usr/bin/xdg-mime`: line 885: `qtpaths`: command not found

Considering that `dnf5 provides /usr/bin/qtpaths` returns results:

```YAML
qt5-qttools-5.15.17-1.fc42.x86_64 : Qt5 - QtTool components
Repo : updates
Matched From : 
Filename : /usr/bin/qtpaths

```

…this is worrisome. It should have prompted me to install it. In fact, every time I register the installation:

 ![Screenshot](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/6/1/561a4308068afa904029f93660cc487df4d8d84c.png)

…I see it again:

```log
RokeJulianLockhart@Beedell:~/Documents/The_Unsanitised/Git_Repositories/Unreal_Engine/Engine/Binaries/Linux$ ./UnrealVersionSelector-Linux-Shipping
5.1.0-23329225+++UE5+Release-5.1 1008 0
Disabling core dumps.
/usr/bin/xdg-mime: line 885: qtpaths: command not found

```

KDE Plasma 6 utilises solely Qt 6, so I’d rather not have Qt 5 installed, if possible.

---

<div class="post-metadata">

**Author:** ![nande](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/nande/32/1057698_2.png) [@nande](https://forums.unrealengine.com/u/nande)\
**Post date:** [July 15, 2025, 11:33pm UTC](https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816/2 "2025-07-15T23:33:45Z")

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hey fellow linuxer.  
i use kde ubuntu and i haven’t noticed the

```auto
/usr/bin/xdg-mime: line 885: qtpaths: command not found

```

ue should not require you to install anything on your system. i actually like it’s that way.

> [@RokeJulianLockhart](#):
>
> This shouldn’t be X11 these days.

that’s an old dialog, from when ue started on linux. i think it’s good that it still supports x11 as some systems still use it. like mine.  
having said that, beware that ue doesn’t officially support wayland. and i’ve heard a few issues of using it under wayland.