Hello,

When I configure Apereo CAS version 6.4.5 to act as an IdP for the SAML2 
protocol, I get a weird error. If I don't create the directory 
*/etc/cas/saml*, and leave CAS free to handle the creation of the 
idp-metadata.xml file, it works fine. But if I try to use my own 
*idp-metadata.xml 
*file, and put it at */etc/cas/saml*, I get the error:

*2022-02-01 11:59:29,715 ERROR 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.DefaultSamlIdPObjectSigner]
 
- <Unable to locate any signing credentials for service [Mi cool service]>*

I have verified my metadata file with this 
site: https://www.samltool.com/validate_xml.php, and seems to be correct. I 
put it down here in case it is useful, changing sensible names and that 
stuff:


<?xml version="1.0"?>
<md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" 
xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui" 
validUntil="2021-12-30T15:55:49Z" cacheDuration="PT1641311749S" 
entityID="http://mycas.com/cas/idp/metadata";>
  <md:IDPSSODescriptor WantAuthnRequestsSigned="true" 
protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
    <md:Extensions>
      <mdui:UIInfo>
        <mdui:DisplayName xml:lang="en">My Site</mdui:DisplayName>
        <mdui:Description xml:lang="en">The identity provider at My 
Site</mdui:Description>
        <mdui:Logo height="32" width="32" 
xml:lang="en">https://logo_url</mdui:Logo>
      </mdui:UIInfo>
    </md:Extensions>
    <md:KeyDescriptor use="signing">
      <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#";>
        <ds:X509Data>
          <ds:X509Certificate>My Signing Cert</ds:X509Certificate>
        </ds:X509Data>
      </ds:KeyInfo>
    </md:KeyDescriptor>
    <md:KeyDescriptor use="encryption">
      <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#";>
        <ds:X509Data>
          <ds:X509Certificate>My Encription Cert</ds:X509Certificate>
        </ds:X509Data>
      </ds:KeyInfo>
    </md:KeyDescriptor>
    <md:SingleLogoutService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" 
Location="http://mycas.com/cas/idp/profile/SAML2/POST/SLO"/>
    <md:SingleLogoutService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" 
Location="http://mycas.com/cas/logout"/>
    
<md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat>
    <md:SingleSignOnService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" 
Location="http://mycas.com/cas/idp/profile/SAML2/POST/SSO"/>
    <md:SingleSignOnService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST-SimpleSign" 
Location="http://mycas.com/cas/idp/profile/SAML2/POST-SimpleSign/SSO"/>
    <md:SingleSignOnService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP" 
Location="http://mycas.com/cas/idp/profile/SAML2/SOAP/ECP"/>
    <md:SingleSignOnService 
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" 
Location="http://mycas.com/cas/login"/>
  </md:IDPSSODescriptor>
  <md:Organization>
    <md:OrganizationName xml:lang="en-US">Organization 
Name</md:OrganizationName>
    <md:OrganizationDisplayName 
xml:lang="en-US">Name</md:OrganizationDisplayName>
    <md:OrganizationURL 
xml:lang="en-US">https://mysite.com</md:OrganizationURL>
  </md:Organization>
  <md:ContactPerson contactType="administrative">
    <md:GivenName>Some Guy</md:GivenName>
    <md:EmailAddress>mailto:[email protected]</md:EmailAddress>
  </md:ContactPerson>
  <md:ContactPerson contactType="technical">
    <md:GivenName>Other Guy</md:GivenName>
    <md:EmailAddress>[email protected]</md:EmailAddress>
  </md:ContactPerson>
  <md:ContactPerson contactType="support">
    <md:GivenName>Another One</md:GivenName>
    <md:EmailAddress>[email protected]</md:EmailAddress>
  </md:ContactPerson>
</md:EntityDescriptor>
Do you have any idea of what could be the problem?

Thanks

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