Calibre 3.23.0 Runtime error upon startup

[rootsdigger05]

Hi,

I just installed Calibre 3.23.0 and now I get a C++ runtime error upon startup.
(See attached).

Help?

[DNSB]

Originally Posted by rootsdigger05

Hi,

I just installed Calibre 3.23.0 and now I get a C++ runtime error upon startup.
(See attached).

This question would have been better asked in the Calibre forum.

See Calibre for the forum.

If you click ok on the popup, does calibre continue to load or do you get another popup?

Was this a new install of calibre or was it an upgrade from an earlier version? If it was an upgrade from an earlier version, I would suggest uninstalling calibre and then deleting the Calibre2 directory from Program Files. This will not affect your calibre data. After the uninstall, re-install calibre.

If it was a clean install, the first possibility that comes to mind is that you have more than one install of a Microsoft C++ library or that you have a missing install of a Microsoft C++ library. I've seen both trigger that error message.

[BetterRed]

Originally Posted by rootsdigger05

Hi,

I just installed Calibre 3.23.0 and now I get a C++ runtime error upon startup.
(See attached).

Help?

Which version of Windows are you running?

Originally Posted by DNSB

Was this a new install of calibre or was it an upgrade from an earlier version? If it was an upgrade from an earlier version, I would suggest uninstalling calibre and then deleting the Calibre2 directory from Program Files. This will not affect your calibre data. After the uninstall, re-install calibre.

In this case it should be - ". . . delete the Calibre2 directory from Program Files (X86)".

But I'd suggest the OP uninstall it via the Control Panel Programs and Features applet, that should clean-up the Trusted installer related registry entries.

BR

[DNSB]

Originally Posted by BetterRed

In this case it should be - ". . . delete the Calibre2 directory from Program Files (X86)".

My bad. I missed the 32 bit install on 64 bit windows.

Originally Posted by BetterRed

But I'd suggest the OP uninstall it via the Control Panel Programs and Features applet, that should clean-up the Trusted installer related registry entries.

I thought I had that covered under "uninstalling calibre and then deleting the Calibre2 directory"?

[BetterRed]

Oops, I (mis)read what you wrote as 'uninstall calibre by deleting the Calibre2 directory'.

BR

[rootsdigger05]

Problem solved.
First, I un-installed all previous versions of Microsoft Visual C++ (2005 thru 2012).
Second, I deleted the Calibre2 directory, as advised above.
Voila!
Calibre now launches without issues.
Sorry about posting to the incorrect place, but the link to the "forum" was posted here:
https://calibre-ebook.com/help

[DNSB]

No problem. Good to hear calibre is now working for you. One question did you install the 32 bit or 64 bit version this time. Not much difference unless you are converting a complex document where the 64 bit's extra memory allows some conversions to succeed.