recently I ran into an error when trying to start kontact from yakuake. Since a couple of days typing kontact and hitting Enter results in:
kontact: symbol lookup error: /lib64/libQt5WebEngineCore.so.5: undefined symbol: _ZN3re23RE23Arg9parse_intEPKciPv
libQt5WebEngineCore.so.5 is a symlink to libQt5WebEngineCore.so.5.12.2 which is part of the package qt5-qtwebengine.
As per output from dnf history info qt5-qtwebengine the package was last updated from @updates on 27. May 2019 on my system; kontact also got updated with the same transaction and since it was running like a charm.
Has anyone a hint what could have happened respectively where to start troubleshooting?
Note 1: starting kontact from the application launcher doesn’t work as well
Note 2: running:
nm -D /lib64/libQt5WebEngineCore.so.5.12.2 | grep Arg9 -
looks like the symbol is really undefined.