ProcessControl: Application '/usr/bin/akonadi_agent_launcher' returned with exit code 1 (Unknown error)
Preceeded by (example, different things are not found):
QPluginLoader* AgentPluginLoader::load(const QString&) plugin file: "akonadi_maildir_resource" not found!
QPluginLoader* AgentPluginLoader::load(const QString&) plugin file: "akonadi_contacts_resource" not found!
...
$ ps -ef|grep akona
oms 8884 1 1 13:07 ? 00:00:00 /usr/bin/akonadi_control
oms 8887 8884 0 13:07 ? 00:00:00 akonadiserver
oms 8890 8887 7 13:07 ? 00:00:03 /usr/sbin/mysqld --defaults-file=/usr/oms/.local/share/akonadi/mysql.conf --datadir=/usr/oms/.local/share/akonadi/db_data/ --socket=/tmp/akonadi-oms.smrk2F/mysql.socket
oms 8924 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_archivemail_agent --identifier akonadi_archivemail_agent
oms 8925 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_baloo_indexer --identifier akonadi_baloo_indexer
oms 8928 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_followupreminder_agent --identifier akonadi_followupreminder_agent
oms 8934 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_imap_resource --identifier akonadi_imap_resource_1
oms 8939 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_maildispatcher_agent --identifier akonadi_maildispatcher_agent
oms 8940 8884 1 13:07 ? 00:00:00 /usr/bin/akonadi_mailfilter_agent --identifier akonadi_mailfilter_agent
oms 8941 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_migration_agent --identifier akonadi_migration_agent
oms 8943 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_mixedmaildir_resource --identifier akonadi_mixedmaildir_resource_0
oms 8948 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_newmailnotifier_agent --identifier akonadi_newmailnotifier_agent
oms 8949 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_notes_agent --identifier akonadi_notes_agent
oms 8950 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_pop3_resource --identifier akonadi_pop3_resource_0
oms 8951 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_pop3_resource --identifier akonadi_pop3_resource_1
oms 8954 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_pop3_resource --identifier akonadi_pop3_resource_2
oms 8957 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_pop3_resource --identifier akonadi_pop3_resource_3
oms 8962 8884 0 13:07 ? 00:00:00 /usr/bin/akonadi_sendlater_agent --identifier akonadi_sendlater_agent
Starting kmail from console show lots of
akonadicore_log: Unable to deserialize payload part: "ENVELOPE"
Maybe you can see, if something is missing here:
$ dpkg -l '*akonadi*'|grep -v ^un
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===============================-============-============-====================================================
ii akonadi-backend-mysql 4:16.04.2-3 all MySQL storage backend for Akonadi
ii akonadi-server 4:16.04.2-3 amd64 Akonadi PIM storage service
ii akonadiconsole 4:16.04.2-1 amd64 management and debugging console for akonadi
ii libakonadi-calendar4 4:4.14.10-4 amd64 library providing calendar helpers for Akonadi items
ii libakonadi-contact4 4:4.14.10-4 amd64 Akonadi contacts access library
ii libakonadi-kabc4 4:4.14.10-4 amd64 Akonadi address book access library
ii libakonadi-kcal4 4:4.14.10-4 amd64 Akonadi calendar access library
ii libakonadi-kde4 4:4.14.10-4 amd64 library for using the Akonadi PIM data server
ii libakonadi-kmime4 4:4.14.10-4 amd64 Akonadi MIME handling library
ii libakonadi-notes4 4:4.14.10-4 amd64 Akonadi notes access library
ii libakonadiprotocolinternals1 1.13.0-9 amd64 libraries for the Akonadi PIM storage service
ii libkf5akonadiagentbase5:amd64 4:16.04.2-3 amd64 Akonadi agent base library
ii libkf5akonadicalendar5:amd64 16.04.2-2 amd64 library providing calendar helpers for Akonadi items
ii libkf5akonadicontact5:amd64 4:16.04.2-2 amd64 Akonadi contacts access library
ii libkf5akonadicore-bin 4:16.04.2-3 amd64 Tools for Akonadi core library
ii libkf5akonadicore5:amd64 4:16.04.2-3 amd64 Akonadi core library
ii libkf5akonadimime5:amd64 4:16.04.2-2 amd64 Akonadi MIME handling library
ii libkf5akonadinotes5:amd64 4:16.04.2-2 amd64 Akonadi notes access library
ii libkf5akonadiprivate5 4:16.04.2-3 amd64 libraries for the Akonadi PIM storage service
ii libkf5akonadisearchdebug5:amd64 16.04.2-2 amd64 Akonadi search debug library
ii libkf5akonadisearchpim5:amd64 16.04.2-2 amd64 Akonadi search library
ii libkf5akonadiwidgets5:amd64 4:16.04.2-3 amd64 Akonadi widgets library
$ dpkg -l '*kdepim*'|grep -v ^un
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=================================-============-============-=========================================================
ii kdepim-addons 16.04.2-1 amd64 Addons for KDE PIM applications
ii kdepim-doc 4:16.04.2-1 all KDE Personal Information Management library documentation
ii kdepim-runtime 4:4.14.10-2 amd64 runtime components for Akonadi KDE
ii kdepimlibs-data 4:16.04.2-2 all kdepimlibs - data files
ii kdepimlibs-kio-plugins 4:16.04.1-1 amd64 kio slaves used by KDE PIM applications
ii kf5-kdepim-apps-libs-data 4:16.04.2-2 all KDE PIM mail related libraries, data files
ii kf5-kdepimlibs-kio-plugins 4:16.04.2-2 amd64 kio slaves used by KDE PIM applications
ii libkf5kdepimdbusinterfaces5:amd64 4:16.04.2-2 amd64 KDE PIM D-Bus interfaces library
ii libkf5libkdepim-data 4:16.04.2-2 all KDE PIM library - data files
ii libkf5libkdepim-plugins:amd64 4:16.04.2-2 amd64 KDE PIM library - plugins
ii libkf5libkdepim5:amd64 4:16.04.2-2 amd64 KDE PIM library
Tim