I cannot work out how to install those missing debug symbols. Looking
for -dbg or -debug named packages leads me to a dead end.
More mooching about the internet lead me to the suggestion of setting
export QT_DEBUG_PLUGINS=1
Then running my failing program again to see a more detailed output.
$ export QT_DEBUG_PLUGINS=1
$ git-cola
QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms"
...
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqeglfs.so"
Found metadata in lib
/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqeglfs.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"eglfs"
]
},
"className": "QEglFSIntegrationPlugin",
"debug": false,
"version": 329989
}
...<trimming out the rest of the OK stuff until we reach>...
Got keys from plugin meta data ("xcb")
Cannot load library /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so:
(/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: symbol
_ZNK15QPlatformWindow15safeAreaMarginsEv version Qt_5_PRIVATE_API not defined
in file libQt5Gui.so.5 with link time reference)
QLibraryPrivate::loadPlugin failed on
"/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so" : "Cannot load
library /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so:
(/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: symbol
_ZNK15QPlatformWindow15safeAreaMarginsEv version Qt_5_PRIVATE_API not defined
in file libQt5Gui.so.5 with link time reference)"
This application failed to start because it could not find or load the Qt
platform plugin "xcb"
in "".
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl,
offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-
xcomposite-glx, xcb.
Reinstalling the application may fix this problem.
Aborted (core dumped)
I cannot find any helpful solutions based on that extra output.
I am not certain there is much maintenance of the package done under Ubuntu.
Some of what I was reading suggested it was to do with the Qt packaging of an
application (or possible of Qt).
Raised a bug on the project page as a result of those statements
https://github.com/git-cola/git-cola/issues/869
** Bug watch added: github.com/git-cola/git-cola/issues #869
https://github.com/git-cola/git-cola/issues/869
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/1785249
Title:
git-cola crashed with SIGABRT
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