SUMMARY STEPS TO REPRODUCE 1. sudo pkcon install kmail or 2. sudo apt install kmail or 3. sudo pkcon install korganizer or 4. try to install with discover software OBSERVED RESULT 1. Fatal error: The following packages have unmet dependencies: kmail: Depends: kdepim-runtime but it is not going to be installed Depends: libkf5akonadisearch-bin but it is not going to be installed Depends: libkf5calendarcore5 but it is not installable Depends: libkf5calendarutils5 but it is not going to be installed Depends: libkf5mailcommon5 but it is not going to be installed Depends: libkf5messagecomposer5 but it is not going to be installed Depends: libkf5tnef5 but it is not going to be installed Recommends: accountwizard but it is not going to be installed Recommends: gnupg2 but it is not going to be installed Recommends: kdepim-addons but it is not going to be installed Recommends: kdepim-themeeditors but it is not going to be installed Recommends: mbox-importer but it is not going to be installed Recommends: pim-data-exporter but it is not going to be installed Recommends: pim-sieve-editor but it is not going to be installed Recommends: pinentry-qt but it is not going to be installed or pinentry-x11 2. Reading package lists... Done Building dependency tree Reading state information... Done Starting pkgProblemResolver with broken count: 1 Starting 2 pkgProblemResolver with broken count: 1 Investigating (0) kmail:amd64 < none -> 4:19.08.2-0xneon+18.04+bionic+build44 @un puN Ib > Broken kmail:amd64 Depends on akonadi-server:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build33 @un uH > (>= 4:16.04) Considering akonadi-server:amd64 0 as a solution to kmail:amd64 9999 Re-Instated libaio1:amd64 Re-Instated mysql-client-core-5.7:amd64 Re-Instated default-mysql-client-core:amd64 Re-Instated mysql-server-core-5.7:amd64 Re-Instated default-mysql-server-core:amd64 Re-Instated libqt5sql5-mysql:amd64 Re-Instated akonadi-backend-mysql:amd64 Re-Instated libkf5akonadiprivate5:amd64 Re-Instated libkf5akonadi-data:amd64 Re-Instated libkf5akonadicore5:amd64 Re-Instated libkf5akonadiwidgets5:amd64 Re-Instated akonadi-server:amd64 Broken kmail:amd64 Depends on kdepim-runtime:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build39 @un uH > Considering kdepim-runtime:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5ldap5:amd64 Re-Instated kio-ldap:amd64 Re-Instated kio-sieve:amd64 Re-Instated libkpimgapi-data:amd64 Re-Instated libsasl2-modules-kdexoauth2:amd64 Re-Instated libkf5akonadiagentbase5:amd64 Re-Instated libkf5akonadicalendar-data:amd64 Re-Instated akonadi-contacts-data:amd64 Re-Instated libkf5contacts-data:amd64 Re-Instated libkf5contacts5:amd64 Re-Instated libkf5contacteditor5:amd64 Re-Instated libkf5mime5:amd64 Re-Instated libkf5akonadicontact5:amd64 Re-Instated akonadi-mime-data:amd64 Re-Instated libkf5akonadimime5:amd64 Reinst Failed early because of libkf5calendarcore5:amd64 Reinst Failed because of libkf5akonadicalendar5:amd64 Considering kdepim-runtime:amd64 1 as a solution to kmail:amd64 9999 Considering kdepim-runtime:amd64 1 as a solution to kmail:amd64 9999 Considering kdepim-runtime:amd64 1 as a solution to kmail:amd64 9999 Considering kdepim-runtime:amd64 1 as a solution to kmail:amd64 9999 Broken kmail:amd64 Depends on libkf5akonadisearch-bin:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build32 @un uH > Considering libkf5akonadisearch-bin:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5akonadisearchpim5:amd64 Re-Instated libkf5akonadisearch-data:amd64 Re-Instated libkf5akonadisearchcore5:amd64 Re-Instated libkf5akonadisearchxapian5:amd64 Reinst Failed early because of libkf5calendarcore5:amd64 Considering libkf5akonadisearch-bin:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5akonadisearch-bin:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5akonadisearch-bin:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5akonadisearch-bin:amd64 1 as a solution to kmail:amd64 9999 Broken kmail:amd64 Depends on libkf5akonadisearch-plugins:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build32 @un uH > Considering libkf5akonadisearch-plugins:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5akonadisearch-plugins:amd64 Broken kmail:amd64 Depends on libkf5grantleetheme-plugins:amd64 < none | 19.08.2-0xneon+18.04+bionic+build22 @un uH > Considering libkf5grantleetheme-plugins:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5grantleetheme-plugins:amd64 Broken kmail:amd64 Depends on libkf5akonadisearchdebug5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build32 @un uH > Considering libkf5akonadisearchdebug5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5akonadisearchdebug5:amd64 Broken kmail:amd64 Depends on libkf5calendarcore5:amd64 < none @un H > Broken kmail:amd64 Depends on libkf5calendarutils5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build32 @un uH > Considering libkf5calendarutils5:amd64 1 as a solution to kmail:amd64 9999 Reinst Failed early because of libkf5calendarcore5:amd64 Considering libkf5calendarutils5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5calendarutils5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5calendarutils5:amd64 1 as a solution to kmail:amd64 9999 Broken kmail:amd64 Depends on libkf5followupreminder5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build39 @un uH > Considering libkf5followupreminder5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated kf5-kdepim-apps-libs-data:amd64 Re-Instated libkf5followupreminder5:amd64 Broken kmail:amd64 Depends on libkf5gravatar5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build36 @un uH > Considering libkf5gravatar5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5libkdepim-data:amd64 Re-Instated libkf5libkdepim5:amd64 Re-Instated libgrantlee-textdocument5:amd64 Re-Instated libkf5pimtextedit5:amd64 Re-Instated libkf5pimcommon5:amd64 Re-Instated libkf5gravatar5:amd64 Broken kmail:amd64 Depends on libkf5identitymanagement5:amd64 < none | 19.08.2-0xneon+18.04+bionic+build26 @un uH > Considering libkf5identitymanagement5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5identitymanagement5:amd64 Broken kmail:amd64 Depends on libkf5kontactinterface5:amd64 < none | 19.08.2-0xneon+18.04+bionic+build26 @un uH > Considering libkf5kontactinterface5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5kontactinterface-data:amd64 Re-Instated libkf5kontactinterface5:amd64 Broken kmail:amd64 Depends on libkf5ksieveui5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build37 @un uH > Considering libkf5ksieveui5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5ksieve-data:amd64 Re-Instated libkf5kmanagesieve5:amd64 Re-Instated libkf5ksieve5:amd64 Re-Instated libkf5ksieveui5:amd64 Broken kmail:amd64 Depends on libkf5libkdepimakonadi5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build34 @un uH > Considering libkf5libkdepimakonadi5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5libkdepimakonadi5:amd64 Broken kmail:amd64 Depends on libkf5libkleo5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build25 @un uH > Considering libkf5libkleo5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5libkleo-data:amd64 Re-Instated libqgpgme7:amd64 Re-Instated libkf5libkleo5:amd64 Broken kmail:amd64 Depends on libkf5mailcommon5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build41 @un uH > Considering libkf5mailcommon5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5mailcommon-data:amd64 Re-Instated libkf5mailimporter5:amd64 Re-Instated libkf5mailtransport-data:amd64 Re-Instated libkpimgapicore5:amd64 Re-Instated libkpimsmtp5:amd64 Re-Instated libkf5mailtransport5:amd64 Re-Instated kf5-messagelib-data:amd64 Reinst Failed early because of libkf5calendarcore5:amd64 Reinst Failed because of libkf5messagecomposer5:amd64 Considering libkf5mailcommon5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5mailcommon5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5mailcommon5:amd64 1 as a solution to kmail:amd64 9999 Broken kmail:amd64 Depends on libkf5mailtransportakonadi5:amd64 < none | 19.08.2-0xneon+18.04+bionic+build31 @un uH > Considering libkf5mailtransportakonadi5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5mailtransportakonadi5:amd64 Broken kmail:amd64 Depends on libkf5messagecomposer5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build42 @un uH > Considering libkf5messagecomposer5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5messagecomposer5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5messagecomposer5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5messagecomposer5:amd64 1 as a solution to kmail:amd64 9999 Broken kmail:amd64 Depends on libkf5messagecore5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build42 @un uH > Considering libkf5messagecore5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5messagecore5:amd64 Broken kmail:amd64 Depends on libkf5messagelist5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build42 @un uH > Considering libkf5messagelist5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5imap5:amd64 Re-Instated libkf5pimcommonakonadi5:amd64 Re-Instated libkf5messagelist5:amd64 Broken kmail:amd64 Depends on libkf5messageviewer5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build42 @un uH > Considering libkf5messageviewer5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5grantleetheme5:amd64 Re-Instated libkf5kaddressbookgrantlee5:amd64 Re-Instated libkf5mbox5:amd64 Re-Instated libkf5mimetreeparser5:amd64 Re-Instated libkf5webengineviewer5:amd64 Re-Instated libkf5messageviewer5:amd64 Broken kmail:amd64 Depends on libkf5sendlater5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build39 @un uH > Considering libkf5sendlater5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5sendlater5:amd64 Broken kmail:amd64 Depends on libkf5templateparser5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build42 @un uH > Considering libkf5templateparser5:amd64 1 as a solution to kmail:amd64 9999 Re-Instated libkf5templateparser5:amd64 Broken kmail:amd64 Depends on libkf5tnef5:amd64 < none | 4:19.08.2-0xneon+18.04+bionic+build45 @un uH > Considering libkf5tnef5:amd64 1 as a solution to kmail:amd64 9999 Reinst Failed early because of libkf5calendarcore5:amd64 Considering libkf5tnef5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5tnef5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5tnef5:amd64 1 as a solution to kmail:amd64 9999 Considering libkf5tnef5:amd64 1 as a solution to kmail:amd64 9999 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: kmail : Depends: kdepim-runtime but it is not going to be installed Depends: libkf5akonadisearch-bin but it is not going to be installed Depends: libkf5calendarcore5 but it is not installable Depends: libkf5calendarutils5 but it is not going to be installed Depends: libkf5mailcommon5 but it is not going to be installed Depends: libkf5messagecomposer5 but it is not going to be installed Depends: libkf5tnef5 but it is not going to be installed Recommends: accountwizard but it is not going to be installed Recommends: gnupg2 but it is not going to be installed Recommends: kdepim-addons but it is not going to be installed Recommends: kdepim-themeeditors but it is not going to be installed Recommends: mbox-importer but it is not going to be installed Recommends: pim-data-exporter but it is not going to be installed Recommends: pim-sieve-editor but it is not going to be installed Recommends: pinentry-qt but it is not going to be installed or pinentry-x11 E: Unable to correct problems, you have held broken packages. 3. Fatal error: The following packages have unmet dependencies: korganizer: Depends: kdepim-runtime but it is not going to be installed Depends: libkf5akonadicalendar5 but it is not going to be installed Depends: libkf5calendarcore5 but it is not installable Depends: libkf5calendarsupport5 but it is not going to be installed Depends: libkf5calendarutils5 but it is not going to be installed Depends: libkf5eventviews5 but it is not going to be installed Depends: libkf5incidenceeditor5 but it is not going to be installed 4. Fail unmet dependencies EXPECTED RESULT Sofware installed SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE neon 5.17 User Edition (available in About System) KDE Plasma Version: 5.17.0 KDE Frameworks Version: 5.63.0 Qt Version: 5.13.1 ADDITIONAL INFORMATION Fresh install of kde neon 5.17
Seems to be fixed since my report.