Crashes on Kubuntu 17.04 about prusacontrol

[tibor-vavra]

I can confirm that new build for linux 0.9.3_390_beta(from prusacontrol.org) is function on Kubuntu 17.04. As @probonopd find, problem was missing libQtSvg library in AppImage package.

[GovanifY]

Same issue on latest Gentoo unstable but doesn't even start, using the provided AppImage from your website.
I am pretty sure that if I install the dependencies required it'll run like a charm, it seems like an AppImage bundling issue(Doesn't contains Qt libs and try to get them on the running system?)

[GovanifY]

dev-python/PyQt4-4.12.1 is installed on my system fwiw

[GovanifY]

Yup indeed an AppImage issue, latest libs on my Gentoo runs fine

[probonopd]

Starts OK, but crashes after selecting anything from the menu

Cannot mix incompatible Qt library (version 0x40807) with this library (version 0x40806)
Aborted (core dumped)

@quibusus does this also happen with a Kubuntu 17.04 Live ISO?

Something is trying to load Qt from the system, which will not work because the AppImage is supposed to use the Qt subset that comes with it. @tibor-vavra please let me know if I should investigate this.

[tibor-vavra]

@probonopd Yes please, I think you know more about AppImage and linux distribution in general than I

[probonopd]

Let's debug this:

me@host:~$ LD_DEBUG=libs /home/me/Downloads/prusacontrol_0.9.2.297_beta.AppImage 2>&1 | grep /usr/lib/x86_64-linux-gnu/libQ
      4750:       trying file=/tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtCore.so.4
      4750:     calling init: /tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtCore.so.4
      4750:       trying file=/tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtGui.so.4
      4750:     calling init: /tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtGui.so.4
      4750:       trying file=/tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtOpenGL.so.4
      4750:     calling init: /tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtOpenGL.so.4
      4750:       trying file=/tmp/.mount_prusacj0etEd/usr/lib/x86_64-linux-gnu/libQtSvg.so.4
      4750:       trying file=/usr/lib/x86_64-linux-gnu/libQtSvg.so.4
      4750:     calling init: /usr/lib/x86_64-linux-gnu/libQtSvg.so.4

As we can see, libQtSvg.so.4 (wrongly) gets loaded from the system, whereas the rest of Qt (correctly) gets loaded from the AppImage (auto-mounted at /tmp/.mount_prusacj0etEd in this example - will be different for you).

Now, let's see whether libQtSvg.so.4 is part of the AppImage:

me@host:~$ /home/me/Downloads/prusacontrol_0.9.2.297_beta.AppImage --appimage-mount &
/tmp/.mount_prusacgzGkz5
me@host:~$ find /tmp/.mount_prusacgzGkz5 | grep libQtSvg
(nothing)

So libQtSvg.so.4 is missing from the AppImage whereas it should be bundled.

Next up, I will try to produce a fixed AppImage.

[probonopd]

Please try
https://bintray.com/probono/AppImages/download_file?file_path=PrusaControl-1555.glibc2.17-x86_64.AppImage

Recipe used:
AppImageCommunity/pkg2appimage@a9b15d6