Shibb sp error

[Peter Schober]

* Kicic Sakib <Sakib.Kicic at smhi.se> [2021-01-28 11:09]:
> shibboleth[1932594]: ERROR Shibboleth.Handler.Metadata [1932594]
> shib_check_user [default] [default]: error while processing request:
> Can't self-sign metadata, no credential resolver found.

What OS/version is this on?

Sounds to me like you have no key pair generated for the SP (which the
installer would do automagically on RHEL/CentOS; on Debian/Ubuntu/etc
you'd have to run shib-keygen) *and* configured the SP to sign its own
metadata (for whatever reason, probably a misunderstanding).

-peter