hud-service crash with qmessageLogger::fatal() reported at login

[Thomas A. F. Thorne]

I start up my Ubuntu 16.04 machine and immediately after loginning in to the GUI I get a crash report about the hub-service. Often this is followed by one or two other reports but not today.

Today I followed the instructions on: https://help.ubuntu.com/community/ReportingBugs
`enabled=1` was already set in /etc/default/apport but I had not set `# 'problem_types': ['Bug', 'Package'],` in /etc/apport/crashdb.conf until this morning. This had the effect of a bug report appearing to be sent in the background but no launchpad page opening. After setting both of the above I did `ubuntu-bug hud` on the command line to generate this report.

This PC was a fresh install a few months ago. As far as I can recall it has been generating the crash report message for most of that time.

It would be nice if I could at least silence the error. Ideally I would like to fix the issue.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: hud 14.10+16.04.20160415-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-32.35~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Feb 12 09:11:35 2018
InstallationDate: Installed on 2017-11-16 (87 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
SourcePackage: hud
UpgradeStatus: No upgrade log present (probably fresh install)
upstart.hud.log:
 This application failed to start because it could not find or load the Qt platform plugin "minimal"
 in "".

 Reinstalling the application may fix this problem.

[Thomas A. F. Thorne (tafthorne)]

Occurred again this morning and an automated bug report brought me back here.

[Thomas A. F. Thorne (tafthorne)]

This morning the second automated bug report prompted me to create +bug1753393

[Thomas A. F. Thorne (tafthorne)]

Seems simple enough to recreate this each time I restart the machine.

[Thomas A. F. Thorne (tafthorne)]

Occurred again today. New report raised at +bug1756839

I raised a new report as this bug seems to happen as a pair with another bug. The original pair that went with this bug (+bug1753393) asked me to raise a new bug to see if better diagnostics were included. I have done so and created +bug1756835. +bug1756839 is the new copy of this bug, created from the same login as +bug1756835

[Thomas A. F. Thorne (tafthorne)]

Happened again today. Raised #1760792 this morning to see if the trace will work. If it does not I shall try adding more -dev packages to see if the backtrace can be brought about.

[liyang (liyanguu)]

Target machins is Ubuntu 16.04:

Linux scadauser-NP3020M3 4.13.0-36-generic #40~16.04.1-Ubuntu SMP Fri Feb 16 23:25:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

This problem also affected me after a new qt installation ( I only copied the lib, plugins, qml into target machine's /usr/local/qt5.7 ).

Tring to start hud-service:
./usr/lib/x86_64-linux-gnu/hud/hud-service
Repoted an error like:
... load the Qt platform plugin "minimal"...

But my applicatins started normally.
This was due to the "qt.conf", I copied my qt.conf to /usr/lib/x86_64-linux-gnu/hud/ and the problem was resolved.

qt.conf:
======================
[Paths]
Prefix=/usr/local/qt5.7
Binaries=bin
Libraries=lib
Plugins=plugins
Imports=imports
Qml2Imports=qml