Can't upgrade LyX on Focal Fossa

[Liviu Andronic]

On 7/22/20, Kees Zeelenberg <kzstatis at gmail.com> wrote:
> Thanks for compiling. Synaptic (on Linux Mint 20) aborts installing
> LyX from the PPA with the messages:
> Vereisten: libqtcore4 (>=4:4.8.0) but it is not installable
> Vereisten: libqtgui4 (>=4:4.8.0) but it is not installable
> Vereisten: libqt4-svg  but it is not installable
>
> It seems Qt4 is no longer supplied on Focal.
>
Yes, for Ubuntu Focal, Qt4 was removed from the Ubuntu repositories.
To install LyX, you will also need to add the ppa:rock-core/qt4 PPA to
your sources (https://launchpad.net/~rock-core/+archive/ubuntu/qt4).


I've now added a note on this on the PPA.

Regards,
Liviu