Strange error with calibre running for a while...

igorius · 12-17-2021, 07:54 AM

At time to time i get this error shown (mostly twice) as separate windows with a big red sign and a ! inside:

Fehler: Contacting calibre failed
Failed to contact running instance of calibre, try restarting calibre

I have the "Copy to clipboard", "Show details" and "ok"-buttons.

I am not using calibre when that errors appear, its only in background. No use of calibre web, nor syncing or whatever.
I confirm with the ok-buttons and everything is ok. No changes in behaviour of calibre...
And as said, that error mostly appears twice, so i have to confirm 2 times.

georgemk · 12-17-2021, 08:06 AM

Next time you get this error message, click "Copy to clipboard" and then paste that text into this thread.

Without that and detail of your OS, version of Calibre we are all just guessing.

igorius · 12-17-2021, 07:23 PM

Oh, sorry, forgot that. So here we go:

calibre, version 5.33.2
FEHLER: Contacting calibre failed: Failed to contact running instance of calibre, try restarting calibre

Failed to connect to Listener at: /tmp/papi-calibre-gui.socket with error: QLocalSocket::connectToServer: Invalid name

'shutdown:'

Second error:

calibre, version 5.33.2
FEHLER: Contacting calibre failed: Failed to contact running instance of calibre, try restarting calibre

Failed to connect to Listener at: /tmp/papi-calibre-gui.socket with error: QLocalSocket::connectToServer: Invalid name

'shutdown:'

kovidgoyal · 12-17-2021, 08:21 PM

That indicates you arelaunching multiple calibre instances simultaneously, possibly a bounce click or similar. In any case the error is harmless so simply ignore it.

igorius · 12-18-2021, 01:17 AM

Hmm, strange, i never did try to relaunch a new instance of calibre. So yesterday when i left my computer, there were no messages. When i used it again, the messages were there - without any interaction.
Ghost in the machine...

But anyway, thanks for your answer!

12-17-2021, 07:54 AM	#1
igorius Zealot Posts: 118 Karma: 34 Join Date: Jun 2015 Device: ipad & inkpad X	Strange error with calibre running for a while... At time to time i get this error shown (mostly twice) as separate windows with a big red sign and a ! inside: Fehler: Contacting calibre failed Failed to contact running instance of calibre, try restarting calibre I have the "Copy to clipboard", "Show details" and "ok"-buttons. I am not using calibre when that errors appear, its only in background. No use of calibre web, nor syncing or whatever. I confirm with the ok-buttons and everything is ok. No changes in behaviour of calibre... And as said, that error mostly appears twice, so i have to confirm 2 times.

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12-17-2021, 08:06 AM	#2
georgemk Addict Posts: 236 Karma: 291844 Join Date: Oct 2019 Device: Kobo Nia	Next time you get this error message, click "Copy to clipboard" and then paste that text into this thread. Without that and detail of your OS, version of Calibre we are all just guessing.

12-17-2021, 07:23 PM	#3
igorius Zealot Posts: 118 Karma: 34 Join Date: Jun 2015 Device: ipad & inkpad X	Oh, sorry, forgot that. So here we go: calibre, version 5.33.2 FEHLER: Contacting calibre failed: Failed to contact running instance of calibre, try restarting calibre Failed to connect to Listener at: /tmp/papi-calibre-gui.socket with error: QLocalSocket::connectToServer: Invalid name 'shutdown:' Second error: calibre, version 5.33.2 FEHLER: Contacting calibre failed: Failed to contact running instance of calibre, try restarting calibre Failed to connect to Listener at: /tmp/papi-calibre-gui.socket with error: QLocalSocket::connectToServer: Invalid name 'shutdown:'

12-17-2021, 08:21 PM	#4
kovidgoyal creator of calibre Posts: 44,183 Karma: 23000000 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That indicates you arelaunching multiple calibre instances simultaneously, possibly a bounce click or similar. In any case the error is harmless so simply ignore it.

12-18-2021, 01:17 AM	#5
igorius Zealot Posts: 118 Karma: 34 Join Date: Jun 2015 Device: ipad & inkpad X	Hmm, strange, i never did try to relaunch a new instance of calibre. So yesterday when i left my computer, there were no messages. When i used it again, the messages were there - without any interaction. Ghost in the machine... But anyway, thanks for your answer!

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