[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
ZipImportError:bad local file header: C:\Program Files\Calibre2\app\pylib.zip
calibre, version 3.47.0
ERROR: Unhandled exception: <b>ZipImportError</b>:bad local file header: C:\Program Files\Calibre2\app\pylib.zip

Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\choose_library.py", line 615, in choose_library
ZipImportError: bad local file header: C:\Program Files\Calibre2\app\pylib.zip