[QGIS-Developer] QtCreator does not start QGIS?

[Nyall Dawson]

On Fri, 13 Nov 2020 at 04:30, Sandro Mani <manisandro at gmail.com> wrote:
>
> As for Fedora, F33 and F34 have fixed packages, but I see that the F33 update was never submitted by the maintainer - I've done so now [1].

HUGE thanks Sandro -- this has been a big source of frustration since
upgrading to F33, and was really killing my productivity!

Nyall


>
> Best
> Sandro
>
> [1] https://bodhi.fedoraproject.org/updates/FEDORA-2020-1893aa323f
>
>
> On 12.11.20 19:17, Alessandro Pasotti wrote:
>
> I switched to QT binaries and sources provided by the QT maintenance tool and that's my way to Nirvana.
>
> I self-build PyQt all the others dependencies.
>
> Cheers
>
>
>
> On Thu, Nov 12, 2020, 18:51 Richard Duivenvoorde <rdmailings at duif.net> wrote:
>>
>> Ough, yes, that looks like it (5.15.1)...
>>
>> Thanks Sandro for checking.
>>
>> The 'random' qtcreator crashes at startup indeed all show 'sigtraps'...
>> And I also thought that it has something todo with the process.start stuff.
>>
>> I see QProcess in a lot of places, so I do not think I can disable parts of QGIS compile?
>>
>> Mmm this is bad (for me & other Testing Debianista's). Hoping there will be a fixed version (qt) soon..
>> Other options?
>> Downgrade Qt?
>> Compile Qt myself?
>> Install Fedora on another machine (which Qt is there?)?
>>
>> Sigh 0o.
>>
>> Richard
>>
>> On 11/12/20 6:00 PM, Sandro Mani wrote:
>> > Hi Richard
>> >
>> > If you are using Qt5.15.{0,1} and are getting random SIGTRAPS, or the process segfaulting straight after starting through gdb, this might be [1].
>> >
>> > Sandro
>> >
>> > [1] https://bugreports.qt.io/browse/QTBUG-86319
>> >
>> > On 12.11.20 15:45, Richard Duivenvoorde wrote:
>> >> Still having troubles starting QGIS in debug in QtCreator in my setup today.
>> >>
>> >> See https://duif.net/qc.png
>> >>
>> >> So QGIS (in QtCreator) starts, and during startup it stops and shows me the dissassembler(?) view. Sometimes I can see something (like in this screendump: something with libnss ?) sometimes all is white/empty.
>> >>
>> >> Last this I in the log is: "Destroyed while process ("whoami"), which according to git is recently changed but... does not seem related to me:
>> >> https://github.com/qgis/QGIS/commit/7a38388a8762503b0bdba55065fffea2ff24137a
>> >>
>> >> Regards,
>> >>
>> >> Richard
>> >>
>> >>
>> >>
>> >> On 11/11/20 9:16 AM, Richard Duivenvoorde wrote:
>> >>> Hi,
>> >>>
>> >>> Currently in my Qt build I cannot debug QGIS in qtcreator because it hangs/stops when showing the splash.
>> >>> After some time the Application Output shows:
>> >>>
>> >>> ../../src/core/qgsmessagelog.cpp:29 : (logMessage) [60891ms] [thread:0x5555560d9d00] 2020-11-11T08:58:15 [1] HTTP fetch https://feed.qgis.org/?after=1605081272&lang=en failed with error Operation canceled
>> >>> ../../src/core/qgsmessagelog.cpp:29 : (logMessage) [0ms] [thread:0x5555560d9d00] 2020-11-11T08:58:15 Network[1] Network request https://feed.qgis.org/?after=1605081272&lang=en timed out
>> >>>
>> >>> I am connected, and https://feed.qgis.org/?after=1605081272&lang=en is available from my browser.
>> >>>
>> >>> Disabling: 'Show QGIS news feed on welcome page' and 'Check QGIS version at startup' fix this.
>> >>>
>> >>> Others have this issue currently?
>> >>>
>> >>> (I hit my head also with this sometimes when in mixed/http proxied environments
>> >>> I still think we should use 'opt in' for these 'QGIS phoning home stuff' instead of 'opt out')
>> >>>
>> >>> Regards,
>> >>>
>> >>> Richard Duivenvoorde
>> >>>
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