# Paraview Building on Ubuntu 21.04 on arm64 fails at not finding xmlpatterns

**URL:** https://discourse.paraview.org/t/paraview-building-on-ubuntu-21-04-on-arm64-fails-at-not-finding-xmlpatterns/7880
**Category:** ParaView Support
**Created:** [August 27, 2021, 9:59pm UTC](https://discourse.paraview.org/t/paraview-building-on-ubuntu-21-04-on-arm64-fails-at-not-finding-xmlpatterns/7880 "2021-08-27T21:59:56Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![Root-voidX](https://discourse.paraview.org/user_avatar/discourse.paraview.org/root-voidx/32/5084_2.png) [@Root-voidX](https://discourse.paraview.org/u/Root-voidX)
#### Post date: [August 27, 2021, 9:59pm UTC](https://discourse.paraview.org/t/paraview-building-on-ubuntu-21-04-on-arm64-fails-at-not-finding-xmlpatterns/7880/1 "2021-08-27T21:59:56Z")

</div>

Dear friends,

So I’m trying to build paraview from source on ubuntu 21.04 arm64.

I have downloaded all pre-requisites and tried to built with options such as qt gui support, python support and ffmpeg. No mpi yet, however make fails at not being able to execute xmlpatterns. Ubuntu has it in /usr/bin/xmlpatterns, but I also copied it to /usr/lib/qt5/bin as well, but make still fails.

How can I fix this? Any help is appreciated 🙏 ❤

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 30, 2021, 7:31am UTC](https://discourse.paraview.org/t/paraview-building-on-ubuntu-21-04-on-arm64-fails-at-not-finding-xmlpatterns/7880/2 "2021-08-30T07:31:02Z")

</div>

sharing the error would be a first step.

In any case the compilation guide is here:  
[https://gitlab.kitware.com/paraview/paraview/-/blob/master/Documentation/dev/build.md](https://gitlab.kitware.com/paraview/paraview/-/blob/master/Documentation/dev/build.md)

---

<div class="post-metadata">

### Author: ![Root-voidX](https://discourse.paraview.org/user_avatar/discourse.paraview.org/root-voidx/32/5084_2.png) [@Root-voidX](https://discourse.paraview.org/u/Root-voidX)
#### Post date: [September 2, 2021, 8:11pm UTC](https://discourse.paraview.org/t/paraview-building-on-ubuntu-21-04-on-arm64-fails-at-not-finding-xmlpatterns/7880/3 "2021-09-02T20:11:28Z")

</div>

Seems like I might have been using an older guide. The gitlab guide helped. No issues so far, its currently building right now.