SUMMARY Since a couple of week, maybe longer, "pkcon update" on Neon Unstable gives: Fatal error: The following packages have unmet dependencies: libexiv2-data: Breaks: libexiv2-27 (< 0.28~) but 0.27.6-1build1 is to be installed STEPS TO REPRODUCE sudo pkcon refresh && sudo pkcon update OBSERVED RESULT Fatal error: The following packages have unmet dependencies: libexiv2-data: Breaks: libexiv2-27 (< 0.28~) but 0.27.6-1build1 is to be installed SOFTWARE/OS VERSIONS KDE neon Unstable Edition Plasma: 6.4.80 Frameworks: 6.18.0 Qt: 6.9.2 Kernel: 6.14.0-29-generic (64-bit) Graphics: Wayland ADDITIONAL INFORMATION Also happens with a snapshot from 2025/10/04, I can try earlier if needed.
Should have clone the system and then rolled back to the snapshot... :-/ I don't have the evidence that the problems started 2 to 3 weeks ago, just recollections
I now get a: Fatal error: The following packages have unmet dependencies: neon-desktop: Depends: powerdevil but it is not going to be installed Recommends: fwupd-signed but it is not going to be installed Recommends: kdeplasma-addons but it is not going to be installed libexiv2-data: Breaks: libexiv2-27 (< 0.28~) but 0.27.6-1build1 is to be installed kwin-wayland: Depends: kwin-common (= 4:6.5.1+p24.04+vunstable+git20251031.0755-0) but 4:6.4.4+p24.04+vunstable+git20250831.0106-0 is to be installed plasma5support: Breaks: plasma-workspace (< 4:6.5.0) but 4:6.4.4+p24.04+vunstable+git20250901.0316-0 is to be installed kwin-common: Depends: kwin-data (= 4:6.4.4+p24.04+vunstable+git20250831.0106-0) but 4:6.5.1+p24.04+vunstable+git20251031.0755-0 is to be installed
It was possible to fix by updating exiv2: $ sudo pkcon update exiv2 it was then possible to do a full $ sudo pkcon update