SUMMARY Missing python3-pyqt5.qtwebengine package in the neon repository. STEPS TO REPRODUCE 1. pkcon install python3-pyqt5.qtwebengine OBSERVED RESULT Fatal error: The following packages have unmet dependencies: python3-pyqt5.qtwebengine: Depends: python3-pyqt5.qtwebchannel (= 5.10.1+dfsg-1ubuntu2) but 5.14.1+dfsg-2+18.04+bionic+build19 is to be installed EXPECTED RESULT Neon User repository should have a package python3-pyqt5.qtwebengine of actual version of qt packages (5.14.1 in this case). SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: KDE Neon 5.18 User Edition (available in About System) KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.1 ADDITIONAL INFORMATION Current qt version in Ubuntu bionic (18.04LTS) is 5.10.1 so pkcon tries to install python3-pyqt5.qtwebengine of the only available version 5.10.1+dfsg-1ubuntu2 from Ubuntu repo that has strict dependency on .qtwebchannel=5.10.1. Actually I tried to install Anki application (via Discover). Bug 411560 is relevant to this.
This is indeed a duplicate of bug #411560. Have a look at the comment I posted there for an explanation of the problem. *** This bug has been marked as a duplicate of bug 411560 ***