Created attachment 112191 [details] Error message When I started Kontact I received a message saying can't load part for Mail. The error message is shown in the attachment. I looked and saw that the "missing" file kmail.so is present. Kontact version 18.04.0 Manjaro unstable, using 4.15.18 kernel Qt 5.10.1, Frameworks 5.45.0, Plasma 5.12.4
Some more info from starting kontact in a terminal: kontact [0423/214050.923414:WARNING:stack_trace_posix.cc(648)] Failed to open file: /tmp/.gl3nttJm (deleted) Error: No such file or directory [0423/214050.923546:WARNING:stack_trace_posix.cc(648)] Failed to open file: /home/jan/#1048881 (deleted) Error: No such file or directory org.kde.pim.kontactinterface: "Cannot load library /usr/lib/qt/plugins/kmailpart.so: (/usr/lib/libKF5MailCommon.so.5: undefined symbol: _ZNK7Akonadi21EntityOrderProxyModel16parentCollectionERK11QModelIndex)" Error loading text-to-speech plug-in "speechd" "https://manjaro.org/feed/" "https://dot.kde.org/rss.xml" "https://www.linux.com/feeds/rss" "https://planetkde.org/rss20.xml" "https://store.kde.org/content.rdf" Received signal 11 SEGV_MAPERR 000000000000 #0 0x7f4693998e76 <unknown> #1 0x7f469261688c <unknown> #2 0x7f46939991ec <unknown> #3 0x7f46a23148e0 <unknown> r8: 0000558eab0e61c0 r9: 000000000000002f r10: 0000558eaa97a010 r11: 0000000000000000 r12: 00007ffea26a9df8 r13: 0000558eaa9fa2e0 r14: 00007f4631bb5538 r15: 0000000000000000 di: 0000000000000001 si: 00007ffea26a9df8 bp: 0000000000000001 bx: 00007f4631bb5510 dx: 0000558eaa9fa2e0 ax: 0000000000000000 cx: 0000558eaa9fa2e0 sp: 00007ffea26a8de8 ip: 0000000000000000 efl: 0000000000010206 cgf: 002b000000000033 erf: 0000000000000014 trp: 000000000000000e msk: 0000000000000000 cr2: 0000000000000000 [end of stack trace] Calling _exit(1). Core file will not be generated.
I have found the error. With the update to 18.04 Akonadi was not updated by the system. I just did that manually and now it works again.