GNU bug report logs - #45404
kiwix-desktop does not start

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maxime.devos <at> student.kuleuven.be>
To: bug-guix <at> gnu.org
Subject: kiwix-desktop does not start
Date: Thu, 24 Dec 2020 13:33:24 +0100

[Message part 1 (text/plain, inline)]

Hello Guix,

kiwix-desktop doesn't start. Depending on the environment, I get
different error messages:

Variant #A (pure environment, in GDM session)
$ guix time-machine --commit=20a687bbfbc72ffcd802b4bc59db344ad4291577
environment --ad-hoc --pure kiwix-desktop -- kiwix-desktop

> No protocol specified
> qt.qpa.xcb: could not connect to display :1
> 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, vnc, xcb.
>
> Aborted

Not sure what's going on here, but here's a GDB backtrace:

Breakpoint 1, 0x00007fffed1e5a90 in abort ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
(gdb) bt
#0  0x00007fffed1e5a90 in abort ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
#1  0x00007fffed78ba2f in QMessageLogger::fatal(char const*, ...) const
()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Core.so.5
#2  0x00007fffee44c8f4 in
QGuiApplicationPrivate::createPlatformIntegration() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#3  0x00007fffee44cdbd in
QGuiApplicationPrivate::createEventDispatcher() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#4  0x00007fffed994905 in QCoreApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Core.so.5
#5  0x00007fffee44e95c in QGuiApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#6  0x00007fffeeb4832e in QApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Widgets.so.5
#7  0x000000000045a84c in ?? ()
#8  0x00000000004333d6 in ?? ()
#9  0x0000000000422d30 in ?? ()
#10 0x00007fffed1d0a6d in __libc_start_main ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
#11 0x00000000004236ea in ?? ()

Variant #B (installed in user profile, in GDM session)

$ kiwix-desktop

> Could not find QtWebEngineProcess

Greetings,
Maxime

[signature.asc (application/pgp-signature, inline)]

Message #8 received at 45404 <at> debbugs.gnu.org (full text, mbox):

From: 宋文武 <iyzsong <at> outlook.com>
To: Maxime Devos <maxime.devos <at> student.kuleuven.be>
Cc: 45404 <at> debbugs.gnu.org
Subject: Re: bug#45404: kiwix-desktop does not start
Date: Sat, 26 Dec 2020 13:37:21 +0800

Maxime Devos <maxime.devos <at> student.kuleuven.be> writes:

> Hello Guix,

Hello!
>
> kiwix-desktop doesn't start. Depending on the environment, I get
> different error messages:
>
> Variant #A (pure environment, in GDM session)
> $ guix time-machine --commit=20a687bbfbc72ffcd802b4bc59db344ad4291577
> environment --ad-hoc --pure kiwix-desktop -- kiwix-desktop
With ‘–-pure’, the process will run in a container that doesn’t have
access to the X server, this is expected behavior.


> Variant #B (installed in user profile, in GDM session)
>
> $ kiwix-desktop
>
>> Could not find QtWebEngineProcess
This is a bug, look like kiwix-desktop should be wrapped with some
environment variables.  In the meantime, you can install qtwebengine and
qtbase into the profile, or use: guix environment --ad-hoc kiwix-desktop
qtbase qtwebengine -- kiwix-desktop

Message #13 received at 45404-done <at> debbugs.gnu.org (full text, mbox):

From: Leo Prikler <leo.prikler <at> student.tugraz.at>
To: Michael Rohleder <mike <at> rohleder.de>
Cc: 45431-done <at> debbugs.gnu.org, 45404-done <at> debbugs.gnu.org
Subject: Re: [PATCH] gnu: kiwix-desktop: Fix program start.
Date: Tue, 29 Dec 2020 21:29:40 +0100

Pushed, thanks!

Small hint, if you want to use pure environments, don't forget
to expose environment variables such as DISPLAY and XAUTHORITY.

Regards,
Leo 

Am Freitag, den 25.12.2020, 17:36 +0100 schrieb Michael Rohleder:
> Fixes <https://bugs.gnu.org/45404>;.
> 
> * gnu/packages/web.scm (kiwix-desktop)[arguments]: Add phase to wrap
> QTWEBENGINEPROCESS_PATH.
> ---
>  gnu/packages/web.scm | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
> index 8d7dfe2804..7486eb7f5b 100644
> --- a/gnu/packages/web.scm
> +++ b/gnu/packages/web.scm
> @@ -7981,7 +7981,17 @@ It contains the code shared by all Kiwix
> ports.")
>             (lambda* (#:key inputs #:allow-other-keys)
>               (substitute* "kiwix-desktop.pro"
>                 (("webenginewidgets" all) (string-append all "
> printsupport")))
> -             #t)))))
> +             #t))
> +         (add-after 'install 'wrap-qt-process-path
> +           (lambda* (#:key inputs outputs #:allow-other-keys)
> +             (let* ((out (assoc-ref outputs "out"))
> +                    (bin (string-append out "/bin/kiwix-desktop"))
> +                    (qt-process-path (string-append
> +                                      (assoc-ref inputs
> "qtwebengine")
> +                                      "/lib/qt5/libexec/QtWebEngineP
> rocess")))
> +               (wrap-program bin
> +                 `("QTWEBENGINEPROCESS_PATH" = (,qt-process-path)))
> +               #t))))))
>      (inputs
>       `(("curl" ,curl)
>         ("icu4c" ,icu4c)

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