Ubuntu 22.04: cannot install libxml2-dev!

[Robert Heller]

What is the cure for this:


sauron% sudo apt install libxml2-dev
Reading package lists... Done
Building dependency tree... Done
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:
 libxml2-dev : Depends: libxml2 (= 2.9.13+dfsg-1ubuntu0.3) but 2.9.14+dfsg-0+ubuntu18.04.1+deb.sury.org+1 is to be installed
E: Unable to correct problems, you have held broken packages.


I guess I can downgrade libxml2?

Yes, that works, but why did this happen?

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