Symbol lookup error

[witip]

I just updated my system and was not able to log in. I was getting the same issue as reported in KDE could not find theme after update

I was able to fix it by downgrading kio to 5.82.0-1 from 5.84.0-1. I was able to log in after that. However, after that I am unable to open Dolphin. When I try to open dolphin from terminal I see,

dolphin: symbol lookup error: /usr/lib/libKF5NewStuffCore.so.5: undefined symbol: _ZNK6Attica8Metadata7headersEv

Could someone help me fix this?

[Strit]

Sounds like you have a mix of normal and -git Plasma packages.

Please replace all the -git packages with their regular counterparts.

There are multiple threads around the forum on how to do this.

[witip]

Removing attica-git fixed the problem. Thank you. Could you point me to some resouce which explains why this happens? Is this because these are development packages which are not tested?

[Strit]

At some point in the past, you installed/upgraded a package that deepended on a -git package.
There was a brief period of time, where it was one of the regular plasma packages, so you probably got caught in that.

[witip]

Thank you once again.

[j4zib]

Thanks, removing attica-git solved my problem.
For anyone facing the same issue, run this command:

pamac list --installed | grep git

and manually replace all the git packages with non-git packages (if possible).