Не удается установить символы отладки qt5core

После следования инструкции по активации репозиториев отладки здесь , я попытался установить символы отладки для libQtCore5, но безуспешно. Вот мой журнал:

sudo apt-get install libqt5core5a-dbgsym
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:
 libqt5core5a-dbgsym : Depends: libqt5core5a (= 5.12.2+dfsg-4ubuntu1.1) but 5.12.2+dfsg-4ubuntu1 is to be installed
E: Unable to correct problems, you have held broken packages.

Вот некоторая информация о моей системе: lsb_release:

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 19.04
Release:        19.04
Codename:       disco

uname:

uname -a
Linux raffa-kubuntu 5.0.0-20-generic #21-Ubuntu SMP Mon Jun 24 09:32:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux