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Old 05-05-2025, 09:52 PM   #1
Uted79
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8.3.0 Update/Load Doesn't Work?
I have only relatively recently installed Calibre and spent some time cleaning up the data. The other day I got a message to say there was a new version (8.3.0) which I downloaded - but it is not working/responding.

The download files appear to be complete but I cannot open Calibre. The icons and shortcuts do nothing, and even trying to open the exe file from the file location does nothing.
I am loathe to fiddle too much with it to start with, because of the effort I put in to cleaning up the data (but I guess that could be shot already).

I'm thinking I probably need to re-download, but I am also trying to figure out what could be causing this? I have W11 OS.

I would appreciate any thoughts or advice people might have; cheers, Uted79
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Old 05-06-2025, 01:36 AM   #2
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Check the Task manager to see if Calibre is actually running (after a launch attempt). It may be off screen.

BTW What OS?
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Old 05-06-2025, 02:30 AM   #3
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Originally Posted by theducks View Post
Check the Task manager to see if Calibre is actually running (after a launch attempt). It may be off screen.

BTW What OS?
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Originally Posted by Uted79 View Post
I have W11 OS.
Go get some new specs duckie.

BR
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Old 05-06-2025, 03:33 AM   #4
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https://manual.calibre-ebook.com/faq...ing-on-windows
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Old 05-10-2025, 09:19 PM   #5
Uted79
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Re: 8.3.0 Update/Load Doesn't Work?
Thanks kovidgoyal for the info: ran the de bug in command prompt - I think this is the bit in which you will be interested:

Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
Traceback (most recent call last):
File "<frozen importlib._bootstrap>", line 1176, in _fin_and_load
File "<frozen importlib._bootstrap>", line 1147, in _fin_and_load_unlocked
File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
File "bypy-importer.py", line 275, in exec_module
File "bypy-importer.py", line 63, in exec_module_code
ValueError: bad marshal data (unknown type code)

Extension modules: bypy_frozen_importer (total: 1)

Hoping this makes sense to you, although even I can see that Something failed! cheers, Uted79
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Old 05-10-2025, 10:53 PM   #6
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Looks like a corrupted install, uninstall delete c:\Program Files\Calibre2 or wherever you chose to install calibre and re-install.
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Old 05-10-2025, 10:57 PM   #7
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I was afraid of that - I will just have to do the data clean up again; thanks anyway. Cheers, Uted79
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Old 05-10-2025, 11:17 PM   #8
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uninstalling does not touch your data or settings
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Old 05-10-2025, 11:19 PM   #9
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Nice to know. I will get cracking on that when I get a chance.
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Old 05-11-2025, 08:19 AM   #10
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Nice to know. I will get cracking on that when I get a chance.
Also try the latest version (8.4).
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