#1  luerman 09-19-2019, 04:54 PM
Hello - my first post here:
Installed: calibre-64bit-3.48.0

I get this error (see details below) when selecting at least two different options:
1) Switch/Create Library
2) Library Maintenance -> Check library

Note: I haven't used either of these options for many months/releases.

What I've tried so far:
I've uninstalled Calibre 64bit. The uninstall process removed the C:\Program Files\Calibre2 folder, so no need to delete that folder. And then reinstalled calibre-64bit-3.48.0.msi. Problem still there.

What should I try next? Can I safely fall back to a prior version? I haven't tried that yet.

Thanks

ERROR: Unhandled exception
calibre, version 3.47.0

Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\choose_library.py", line 615, in choose_library

#2  BetterRed 09-19-2019, 05:38 PM
Quote luerman
Hello - my first post here:
Installed: calibre-64bit-3.48.0

I get this error (see details below) when selecting at least two different options:
1) Switch/Create Library
2) Library Maintenance -> Check library

Note: I haven't used either of these options for many months/releases.

What I've tried so far:
I've uninstalled Calibre 64bit. The uninstall process removed the C:\Program Files\Calibre2 folder, so no need to delete that folder. And then reinstalled calibre-64bit-3.48.0.msi. Problem still there.

What should I try next? Can I safely fall back to a prior version? I haven't tried that yet.

Thanks

ERROR: Unhandled exception
calibre, version 3.47.0

Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\choose_library.py", line 615, in choose_library
Something doesn't look right. You say you're running 3.48 64bit, but the error message tells us that you're running 3.47.

Assuming you install programs in the Windows default locations:
• Uninstall all versions of calibre - look for 32bit and 64 bit;
• Ensure there are no Calibre2 folders in "C:\Program Files (x86)\" and "C:\Program Files\";
• Install Calibre 64 bit.
BR

#3  luerman 09-19-2019, 06:06 PM
Hi, BR. Thanks for response. Good catch. I checked for other Calibre or Calibre2 folders in both C:\Program Files\ and C:\Program Files (x86)\. No other folders. So, I uninstalled again and THEN I restarted my PC (I didn't do that before). Then I downloaded again from https://calibre-ebook.com/download_windows64, and reinstalled. The error is gone.

Thanks. Sorry for not restarting my PC before posting.

Regards,
Steve