# No QT platform error - Ubuntu 22.04 LTS
**URL:** https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253
**Category:** ParaView Support
**Created:** [June 8, 2023, 5:52am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253 "2023-06-08T05:52:18Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@hr\_nt](https://discourse.paraview.org/u/hr_nt)
#### Post date: [June 8, 2023, 5:52am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/1 "2023-06-08T05:52:18Z")
Hello,
I am trying to launch paraview and I get the following error
qt.qpa.plugin: Could not load the Qt platform plugin “xcb” in “” even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: xcb. error: exception occurred: Subprocess aborted
I am opening paraview using the " ./paraview " command. I am running Ubuntu 22.04 LTS. Please let me know how to proceed.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 8, 2023, 6:43am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/2 "2023-06-08T06:43:34Z")
Please download our binary release of ParaView: [https://paraview.org/download](https://paraview.org/download)
---
### Author:  [@Gwang-Jin\_Lee](https://discourse.paraview.org/u/Gwang-Jin_Lee)
#### Post date: [June 8, 2023, 8:52am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/3 "2023-06-08T08:52:24Z")
I also met the same problem though I downloaded the binary release of ParaView.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 8, 2023, 8:55am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/4 "2023-06-08T08:55:22Z")
Which version of ParaView ?
---
### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [June 8, 2023, 11:40am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/5 "2023-06-08T11:40:54Z")
The `xcb` libraries need to be provided by the system. You can see what is missing by doing `ldd /paraview-install-location/plugins/platforms/libqxcb.so` and then use `apt` to install what provides those libraries.
---
### Author:  [@aron.helser](https://discourse.paraview.org/u/aron.helser)
#### Post date: [June 8, 2023, 12:49pm UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/6 "2023-06-08T12:49:21Z")
You probably need the list from [Building Qt5 from git](https://wiki.qt.io/Building_Qt_5_from_Git):
but without the `-dev` added on the end.
```auto
sudo apt-get install '^libxcb.*' libx11-xcb libglu1-mesa libxrender libxi libxkbcommon libxkbcommon-x11
```
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 12, 2023, 6:40pm UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/7 "2023-06-12T18:40:41Z")
Also, please see this FAQ entry:
> [@I'm using Ubuntu 22 and ParaView reports "Could not load the Qt platform plugin 'xcb'"](https://discourse.paraview.org/t/im-using-ubuntu-22-and-paraview-reports-could-not-load-the-qt-platform-plugin-xcb/10642):
>
> Install missing xcb packages using apt install libxcb-xinerama0 apt install libxcb-xinput0
---
### Author:  [@okcfdlab](https://discourse.paraview.org/u/okcfdlab)
#### Post date: [October 26, 2023, 12:03am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/8 "2023-10-26T00:03:46Z")
Hello all, I’m facing a similar issue as the OP. I downloaded a binary release of ParaView (5.11.2). I have installed the libraries recommended by @aron.helser and @cory.quammen. When I run with QT\_DEBUG\_PLUGINS=1, I get the following error:
```auto
QFactoryLoader::QFactoryLoader() checking directory path "/home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms/libqxcb.so"
Found metadata in lib /home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms/libqxcb.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"xcb"
]
},
"archreq": 0,
"className": "QXcbIntegrationPlugin",
"debug": false,
"version": 331520
}
Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/bin/platforms" ...
Cannot load library /home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms/libqxcb.so: (/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: undefined symbol: _ZN23QPlatformVulkanInstance22presentAboutToBeQueuedEP7QWindow, version Qt_5_PRIVATE_API)
QLibraryPrivate::loadPlugin failed on "/home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms/libqxcb.so" : "Cannot load library /home/jbrinker/software/ParaView-5.11.2-MPI-Linux-Python3.9-x86_64/plugins/platforms/libqxcb.so: (/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: undefined symbol: _ZN23QPlatformVulkanInstance22presentAboutToBeQueuedEP7QWindow, version Qt_5_PRIVATE_API)"
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: xcb.
error: exception occurred: Subprocess aborted
```
When I run ldd on the libqxcb.so object as suggested by @ben.boeckel, none of the libraries appear to be missing:
```auto
linux-vdso.so.1 (0x00007ffc64d96000)
libQt5XcbQpa.so.5 => /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 (0x00007f02d9810000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f02d95b6000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f02d94ee000)
libz.so.1 => /usr/lib/x86_64-linux-gnu/libz.so.1 (0x00007f02d94d2000)
libQt5Gui.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 (0x00007f02d8c00000)
libQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 (0x00007f02d8600000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/libGL.so.1 (0x00007f02d944b000)
libpthread.so.0 => /usr/lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f02d9809000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f02d9804000)
libxcb-icccm.so.4 => /usr/lib/x86_64-linux-gnu/libxcb-icccm.so.4 (0x00007f02d9442000)
libxcb-image.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-image.so.0 (0x00007f02d943c000)
libxcb-shm.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007f02d9437000)
libxcb-util.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-util.so.1 (0x00007f02d942e000)
libxcb-keysyms.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-keysyms.so.1 (0x00007f02d9429000)
libxcb-randr.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007f02d9416000)
libxcb-render-util.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render-util.so.0 (0x00007f02d940d000)
libxcb-render.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007f02d93fe000)
libxcb-shape.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shape.so.0 (0x00007f02d93f9000)
libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f02d93ef000)
libxcb-xfixes.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xfixes.so.0 (0x00007f02d93e5000)
libxcb-xinerama.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xinerama.so.0 (0x00007f02d93e0000)
libxcb-xkb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f02d93c0000)
libxcb-xinput.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xinput.so.0 (0x00007f02d939c000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f02d9372000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f02d935d000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f02d84c0000)
libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f02d9352000)
libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f02d9333000)
libxkbcommon-x11.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f02d9328000)
libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f02d92e1000)
libdl.so.2 => /usr/lib/x86_64-linux-gnu/libdl.so.2 (0x00007f02d8bfb000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f02d8200000)
libm.so.6 => /usr/lib/x86_64-linux-gnu/libm.so.6 (0x00007f02d8119000)
libgcc_s.so.1 => /usr/lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f02d8bdb000)
libc.so.6 => /usr/lib/x86_64-linux-gnu/libc.so.6 (0x00007f02d7e00000)
libQt5DBus.so.5 => /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 (0x00007f02d842c000)
libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f02d8bce000)
libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f02d7cc6000)
libexpat.so.1 => /usr/lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f02d8b9b000)
libuuid.so.1 => /usr/lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f02d8b92000)
libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f02d80de000)
libbrotlidec.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007f02d8b84000)
libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007f02d7bf7000)
libmd4c.so.0 => /usr/lib/x86_64-linux-gnu/libmd4c.so.0 (0x00007f02d8b72000)
libdouble-conversion.so.3 => /usr/lib/x86_64-linux-gnu/libdouble-conversion.so.3 (0x00007f02d80c9000)
libicui18n.so.70 => /usr/lib/x86_64-linux-gnu/libicui18n.so.70 (0x00007f02d7800000)
libicuuc.so.70 => /usr/lib/x86_64-linux-gnu/libicuuc.so.70 (0x00007f02d7605000)
libpcre2-16.so.0 => /usr/lib/x86_64-linux-gnu/libpcre2-16.so.0 (0x00007f02d803f000)
libzstd.so.1 => /usr/lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f02d7536000)
/lib64/ld-linux-x86-64.so.2 (0x00007f02d998d000)
libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f02d7b3f000)
libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f02d7502000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f02d8b68000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f02d8b60000)
libbsd.so.0 => /usr/lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f02d74ea000)
libdbus-1.so.3 => /usr/lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f02d749c000)
libpcre.so.3 => /usr/lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f02d7426000)
libbrotlicommon.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007f02d7403000)
libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007f02d73dc000)
libicudata.so.70 => /usr/lib/x86_64-linux-gnu/libicudata.so.70 (0x00007f02d5600000)
libmd.so.0 => /usr/lib/x86_64-linux-gnu/libmd.so.0 (0x00007f02d802e000)
libsystemd.so.0 => /usr/lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f02d7315000)
liblzma.so.5 => /usr/lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f02d72ea000)
liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f02d72ca000)
libcap.so.2 => /usr/lib/x86_64-linux-gnu/libcap.so.2 (0x00007f02d7b34000)
libgcrypt.so.20 => /usr/lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f02d54c2000)
libgpg-error.so.0 => /usr/lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f02d72a4000)
```
I’m now stuck. Any suggestions for next steps?
---
### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [October 26, 2023, 11:12am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/9 "2023-10-26T11:12:18Z")
> [@okcfdlab](#):
>
> `libQt5XcbQpa.so.5 => /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5`
This is odd. Why is it picking up a system Qt library like this? Is there a copy of this in ParaView’s package somewhere?
---
### Author:  [@okcfdlab](https://discourse.paraview.org/u/okcfdlab)
#### Post date: [October 26, 2023, 4:47pm UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/10 "2023-10-26T16:47:33Z")
Hi @ben.boeckel, thanks for responding. Your response made me check my LD\_LIBRARY\_PATH environment variable. I see that I had added `/usr/lib/x86_64-linux-gnu` to `LD_LIBRARY_PATH` (for my case, to ensure FFTW libraries are accessible). When I changed my `LD_LIBRARY_PATH` to include `path-to-paraview/lib` before referencing any of the system lib folders, ParaView launches just fine.
Thanks for the help!
---
### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [October 31, 2023, 12:14am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/11 "2023-10-31T00:14:21Z")
ParaView packages shouldn’t need `LD_LIBRARY_PATH` at all as they should have RPATH set up properly package-wide. If it’s a custom build, rpath management would then be up to you.
---
### Author:  [@markus-96](https://discourse.paraview.org/u/markus-96)
#### Post date: [July 9, 2024, 11:16am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/12 "2024-07-09T11:16:18Z")
For Rocky Linux 8 (and probably all other RHEL 8 based/derived/whatever distros), you have to install the following packages for paraview 5.12.1:
libxcb, xcb-util-wm, xcb-util-image, xcb-util-keysyms, xcb-util-renderutil
---
### Author:  [@djr4cfd](https://discourse.paraview.org/u/djr4cfd)
#### Post date: [December 6, 2024, 11:13am UTC](https://discourse.paraview.org/t/no-qt-platform-error-ubuntu-22-04-lts/12253/13 "2024-12-06T11:13:17Z")
This worked for me on Ubuntu 24.04. Thanks!