No MetadataProvider available - shibsp::ConfigurationException
If it can be of help, I was writing this:
<MetadataProvider type="XML" validate="true" file="/etc/shibboleth/idp-metadata.xml" />instead of this:
<MetadataProvider type="XML" validate="true" path="/etc/shibboleth/idp-metadata.xml" />The XML attribute is path. I'm using Shibboleth SP version 3.
Ensure that you have a section in the default as well as an override if there exists. For me, even though there was a section properly created for the override, it needed one in the defaults
Just for the record. Most configuration of your SP takes place in shibboleth2.xml. Locate this file on your server and edit settings to your comfort.
For Linux installations:Be sure not to edit this file from your installation path, but in your distribution path (i.e. /etc/shibboleth/shibboleth2.xml), otherwise your changes will not be visible ...
A restart of shibd (systemctl restart shibd) is mandatory after changing shibboleth2.xml.