Hi all!

On Ubuntu 22.10 there are probably some dependencies missing for Little Navmap. Google unfortunately gives me so much info on the subject back that I am now even more stupid than before. Does anyone have a idea how to fix it?

Below the terminal output...

 

BR and thx!

Mathias

 

humpix@Humpix-PC:~/X-Plane/LittleNavmap$ ./littlenavmap
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: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb.

Abgebrochen (Speicherabzug geschrieben)
humpix@Humpix-PC:~/X-Plane/LittleNavmap$ ldd littlenavmap
    linux-vdso.so.1 (0x00007ffd77f9c000)
    libmarblewidget-qt5.so.25 => /home/humpix/X-Plane/LittleNavmap/././lib/libmarblewidget-qt5.so.25 (0x00007f4784400000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f4784b78000)
    libQt5PrintSupport.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5PrintSupport.so.5 (0x00007f4784000000)
    libQt5Widgets.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5Widgets.so.5 (0x00007f4783600000)
    libQt5Gui.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5Gui.so.5 (0x00007f4782c00000)
    libQt5Sql.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5Sql.so.5 (0x00007f4782800000)
    libQt5Network.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5Network.so.5 (0x00007f4782400000)
    libQt5Core.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/libQt5Core.so.5 (0x00007f4781c00000)
    libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f4781800000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f4784317000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f4784b56000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4781400000)
    libastro.so.1 => /home/humpix/X-Plane/LittleNavmap/././lib/./libastro.so.1 (0x00007f4784b07000)
    libQt5Xml.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/./libQt5Xml.so.5 (0x00007f4781000000)
    libQt5Quick.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/./libQt5Quick.so.5 (0x00007f4780800000)
    libQt5Svg.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/./libQt5Svg.so.5 (0x00007f4780400000)
    libQt5Qml.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/./libQt5Qml.so.5 (0x00007f477fc00000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4784b00000)
    libGL.so.1 => /lib/x86_64-linux-gnu/libGL.so.1 (0x00007f4784290000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4784afb000)
    libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007f4783fac000)
    libicui18n.so.56 => /home/humpix/X-Plane/LittleNavmap/././lib/libicui18n.so.56 (0x00007f477f600000)
    libicuuc.so.56 => /home/humpix/X-Plane/LittleNavmap/././lib/libicuuc.so.56 (0x00007f477f200000)
    libicudata.so.56 => /home/humpix/X-Plane/LittleNavmap/././lib/libicudata.so.56 (0x00007f477d800000)
    libgthread-2.0.so.0 => /lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f4784af4000)
    libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f4783e73000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f4784ba9000)
    libQt5QmlModels.so.5 => /home/humpix/X-Plane/LittleNavmap/././lib/./libQt5QmlModels.so.5 (0x00007f477d400000)
    librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f478428b000)
    libGLdispatch.so.0 => /lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f4783549000)
    libGLX.so.0 => /lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f4782bce000)
    libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007f4782b05000)
    libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007f4782ad9000)
    libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007f4784285000)
    libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007f4784278000)
    libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007f4781b65000)
    libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007f47816c2000)
    libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007f4783e6c000)
    libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f4783536000)
    libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f4782aaf000)
    libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007f4784272000)
    libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f4783e64000)
    libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f4782a97000)
    libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007f4782a8a000)
humpix@Humpix-PC:~/X-Plane/LittleNavmap$

 

Here in the FAQ is information how to debug the plugin loading: https://albar965.github.io/littlenavmap-faq.html#linux-start

Quote

Little Navmap does not start on Linux

You can run Little Navmap and generate more diagnostics by opening a terminal/shell and cd to the LNM installation folder. Enter the following:

bash -c "(ldd littlenavmap && export QT_DEBUG_PLUGINS=1 && ./littlenavmap )" >start_log.txt 2>&1

This will check dependencies for Little Navmap, enable extra output for plugin loading, run the program and put the output into a file start_log.txt.

Send me this file and I can check which library is missing: Contact.

Seems one of the plugins is missing a package. The last case I ran into was a missing libxcb-icccm4.

The missing packages don't show up in the ldd command since plugins are loaded dynamically. You can also go through the plugins in ".../LittleNavmap-linux-22.04-2.8.7/lib/platforms" and check what is missing.

I'm developing on 22.04 so it should not cause big issues.

Alex

Thanks Alex, that does the trick!

libxcb-xinerama.so.0 was missing according to the log.

sudo apt install libxcb-xinerama0

BR
Mathias

Perfect.👍 Thank for the confirmation. Will update the FAQ.

Alex