KVM/QEMU virtual machine problem after upgrading to Ubuntu 24

On Ubuntu 22 I created a Windows virtual machine on KVM/QEMU using the Virtual Machine Manager.

After upgrading to Ubuntu 24 I cannot run this machine any more. It says "shutoff" and when I try to run it (using the "play" button) I get the error message

Error starting domain:unsupported configuration:domain configuration does not support video model 'qxl'

When I open the VM I have the configuration items on the left (Overview, OS information, etc.) and there is an item "Video QXL" as well. On the right I can choose a value for the parameter "Model" with values "Bochs", "None", "QXL", "Ramfb", "VGA", and "Virtio".

Changing to another option and choosing "Apply" results in another error:

Error changing VM configuration:unsupported configuration:chardev 'spicevmc' not supported without spice graphics

In the "details" section below it says:

Error changing VM configuration: unsupported configuration: chardev 'spicevmc' not supported without spice graphicsTraceback (most recent call last):  File "/usr/share/virt-manager/virtManager/addhardware.py", line 342, in change_config_helper    define_func(devobj=devobj, do_hotplug=False, **define_args)  File "/usr/share/virt-manager/virtManager/object/domain.py", line 923, in define_video    self._process_device_define(editdev, xmlobj, do_hotplug)  File "/usr/share/virt-manager/virtManager/object/domain.py", line 534, in _process_device_define    self._redefine_xmlobj(xmlobj)  File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 391, in _redefine_xmlobj    self._redefine_xml_internal(origxml, newxml)  File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 374, in _redefine_xml_internal    self._define(newxml)  File "/usr/share/virt-manager/virtManager/object/domain.py", line 1137, in _define    self.conn.define_domain(xml)  File "/usr/share/virt-manager/virtManager/connection.py", line 554, in define_domain    return self._backend.defineXML(xml)           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/libvirt.py", line 4543, in defineXML    raise libvirtError('virDomainDefineXML() failed')libvirt.libvirtError: unsupported configuration: chardev 'spicevmc' not supported without spice graphics

I had spice graphics installed in 22, does anyone know that the package name has changed? Is there a way to change the configuration so that I can run the existing VM?

(When I right-click on "Video QXL" item, I can choose to Add Hardware, but I cannot delete the "Video QXL" item itself -- that would have been the easiest I thought)

UPDATE

I followed @petercatania's advice and installed qemu-system-modules-spice, which added libspice-server1, but the error is still there.