GNU bug report logs - #78407
SuperCollider fails to start

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

From: Gabriel Wicki <gabriel <at> erlikon.ch>
To: bug-guix <at> gnu.org
Subject: SuperCollider fails to start
Date: Tue, 13 May 2025 16:20:00 +0200

Trying to start `scide` SuperCollider fails with the message.

> Could not find QtWebEngineProcess

It worked just fine with Guix commit
41bd799b8a631a8ab5833b2d8157511bfef47f8e leaving me in the dark what
exactly could be the cause for the issue.

Message #8 received at 78407 <at> debbugs.gnu.org (full text, mbox):

From: Gabriel Wicki <gabriel <at> erlikon.ch>
To: 78407 <at> debbugs.gnu.org
Date: Wed, 14 May 2025 02:40:48 +0200

It seems like it has nothing to do with specific checkouts.

--8<---------------cut here---------------start------------->8---
gabber <at> silvi ~$ scide
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
Could not find QtWebEngineProcess
Aborted
gabber <at> silvi ~$ guix shell supercollider --pure -- scide
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-gabber'
--8<---------------cut here---------------end--------------->8---

n.b. the second invocation starts the IDE without an issue

Message #13 received at 78407-done <at> debbugs.gnu.org (full text, mbox):

From: Totally Not Gabriel Wicki <gabriel <at> erlikon.ch>
To: 78407-done <at> debbugs.gnu.org
Subject: env vars and profiles
Date: Wed, 14 May 2025 10:16:49 +0200

Maybe you need to log out and log back in for environment variables to
take effect in your home profile?

Message #16 received at 78407 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Gabriel Wicki <gabriel <at> erlikon.ch>
Cc: 78407 <at> debbugs.gnu.org
Subject: Re: bug#78407: (no subject)
Date: Wed, 14 May 2025 22:28:50 +0900

Hi,

Gabriel Wicki <gabriel <at> erlikon.ch> writes:

> It seems like it has nothing to do with specific checkouts.
>
> gabber <at> silvi ~$ scide
> qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
> Could not find QtWebEngineProcess
> Aborted
> gabber <at> silvi ~$ guix shell supercollider --pure -- scide
> QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-gabber'
>
> n.b. the second invocation starts the IDE without an issue

Maybe you could try adding qtwayland-5 to the inputs of the package if
it uses qt-build-system, the plugin will be captured in the wrap script
and ensure it works.

-- 
Thanks,
Maxim

Message #19 received at 78407 <at> debbugs.gnu.org (full text, mbox):

From: Gabriel Wicki <gabriel <at> erlikon.ch>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: 78407 <at> debbugs.gnu.org
Subject: Re: bug#78407: (no subject)
Date: Wed, 14 May 2025 15:40:09 +0200

Hi Maxim

Thanks for your reply - but the issue, which turned out to be a PEBKAC has been resolved. I should have logged out and back in - or at least reloaded my shell configs before expecting my env vars to reflect any changes.

Thanks again for your input, I really appreciate it!
g

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