libjbig0 (= 2.1-3.1ubuntu0.18.04.1) but 2.1-3.1+deb.sury.org~xenial+1 is to be installed

[psociety]

I'm trying to install apt install libjbig-dev so i can have svg support in Imagick on php8.0 - bionic. But i can't because of this error:

apt install libjbig-dev
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:
 libjbig-dev : Depends: libjbig0 (= 2.1-3.1ubuntu0.18.04.1) but 2.1-3.1+deb.sury.org~xenial+1 is to be installed
E: Unable to correct problems, you have held broken packages.

How can i fix this?

[oerdnj]

I have no idea what exactly are you doing and you haven’t provided any details, but Ubuntu Xenial is EOL (ESM) and this repository doesn’t support it.