Problem with Calibre

[PierreDeQuebec]

Hello,

With the upgrade to wily, the Calibre application was de-installed. Now I can't install the application. I get an error message (translated from French):

calibre: Depends: calibre-bin (> = 2.33.0 + dfsg-1build1) but will not be installed
E: Unable to correct problems, defective packets are "keep state" mode.

How to get around this?

Thank you.

[PierreDeQuebec]

OK. I'll be patient.

[sithlord48]

according to http://packages.ubuntu.com/it/wily/qtbase-abi-5-4-2
that is just a virtual package try installing the package it installs instead.

sudo apt install libqt5core5a

[Fester Bestertester]

I'm having the same problem, and getting the same results.
sudo apt install libqt5core5a

...says it's already installed and the latest version. Where to now?

[sithlord48]

well you can try to install the virtual package alone and post errors if it fails if it works then install calibre

[Fester Bestertester]

OK, click the link to the virtual package, and it tells me that it's provided by that lib. Whose cock-up? I thought that virtual packages were supposed to provide, not be provided by, libs.
Given that the lib is already there, should not the virtual package be assumed already installed, and Calibre complete its installation? The de-install by Wily should have been an upgrade if needed.
BTW: the virtual package does not list in the repo by synaptic. Has the lib been provided by another package?

[sithlord48]

according to the package search the package is in the repo . i can't test atm since i don't have a wily installed on this machine. ill see what i can find w/ in a vm and report back

Edit:: I have installed wily in a virtual machine (64-bit build) and was able to install calibre as one would expect by using

sudo apt update
sudo apt install calibre

there was no mention of a qtbase-api package. im using the default mirrors for the US.
0. be sure you have updated the package list
1. either of you using 32bit?
2. maybe try using the US mirror for package?

[Fester Bestertester]

~$ sudo apt-get install calibre
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
calibre : Depends: calibre-bin (>= 2.33.0+dfsg-1build1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

calibre-bin is lacking the virtual package qtbase-abi. Its supposed contents are already in place, as per thread above.
sudo apt-get -f install reports nothing amiss, synaptic having installed and cleared 6 updated packages

Wily, 64-bit. Never had this hiccup before, all my sources are (otherwise?) up-to-date and work.
Is this what is blocking apt from listing?

sudo apt update:
W: GPG error: http://ppa.launchpad.net wily InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3729827454B8C8AC

[sithlord48]

Unable to correct problems, you have held broken packages

you can use

dpkg --get-selections | grep hold

to list these packages .. you will need to unhold or reinstall them.

W: GPG error: http://ppa.launchpad.net wily InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3729827454B8C8AC

you don't have the key imported for some ppa you ahve you can easily fix it.

run to import that key

gpg --keyserver keyserver.ubuntu.com --recv-keys 3729827454B8C8AC

should import the key for that ppa..
if you had added the ppa w/ the command

sudo add-apt-repository ppa:mkusb/ppa

to add it it should have grabbed the key for you when the ppa was added

that error has nothing to do with why you can't install calibre

[sithlord48]

did you all upgrade ? i wonder if something was marked as held durring the update.

[sithlord48]

sorry i ment your system. did you upgrade from a previous version to 15.10

[PierreDeQuebec]

I solved the problem by installing Calibre from a package downloaded directly from the Calibre website.

[GreyGeek]

That is an example of why I never update one release version to the next. I back up my data, which is a good thing anyway, and do a fresh install. Some may do an upgrade and have good results, but doing a fresh install means one less variable to deal with.

[Qqmike]

doing a fresh install means one less variable to deal with.

Yes. Exactly. That, IMO, is the ticket to this game. Reduce the occurrence of too many variables at a time. For this reason, and as "we" have discussed many, many times here, I do all the partitioning ahead of time, in a separate step, using, say, GParted live CD/USB, prior to running the installer, for doing a fresh install. Take one basic step at a time, starting with checking your checksums.

[Fester Bestertester]

Good pointers. Just one fly in the ointment: cost of memory/media to hold backup. Pensioner here
Never had partitioning issues - just remember where it all went/goes, and to select partition for Grub.
Eenyhoo - Solution to Calibre issue for me was 16.04 upgrade, and normal repo.
Going back over my previous woes, not many skittles left to be knocked down. Main remnant is Muon Updater - its progress bar seems to indicate ony progress of download phase (just cosmetic, but a 'professional presentation' matter). Haven't bothered with bluetooth yet, but I guess time will tell.
Thanks folks!