The repository 'https://ppa.launchpadcontent.net/uunicorn/open-fprintd/ubuntu resolute Release' does not have a Release file.

[juniorz]

After upgrading from Ubuntu 24.04 LTS to Ubuntu 26.04 LTS enrolling stopped working.

I tried to re-enroll fingerprints, but it also fails with the following error message in the service logs:

May 23 11:56:14 think ERROR:root:Failed[2394]: 04c3
                                               Traceback (most recent call last):
                                                 File "/usr/lib/python-validity/dbus-service", line 159, in run
                                                   sensor.enroll(usr, index, update_cb)
                                                   ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
                                                 File "/usr/lib/python3/dist-packages/validitysensor/sensor.py", line 854, in enroll
                                                   return do_create_finger(template, tid)
                                                 File "/usr/lib/python3/dist-packages/validitysensor/sensor.py", line 820, in do_create_finger
                                                   recid = db.new_finger(usr, tinfo)
                                                 File "/usr/lib/python3/dist-packages/validitysensor/db.py", line 235, in new_finger
                                                   rec = self.new_record(userid, 0xb, stg.dbid, template)
                                                 File "/usr/lib/python3/dist-packages/validitysensor/db.py", line 218, in new_record
                                                   assert_status(rsp)
                                                   ~~~~~~~~~~~~~^^^^^
                                                 File "/usr/lib/python3/dist-packages/validitysensor/util.py", line 12, in assert_status
                                                   raise Exception('Failed: %04x' % s)
                                               Exception: Failed: 04c3

When trying to upgrade, there are no packages published for Ubuntu 26.04 LTS.

Err:13 https://ppa.launchpadcontent.net/uunicorn/open-fprintd/ubuntu resolute Release                            
  404  Not Found [IP: 185.125.189.188 443]
...
Reading package lists... Done                                             
E: The repository 'https://ppa.launchpadcontent.net/uunicorn/open-fprintd/ubuntu resolute Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

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