Navigating to Entity ID gives 404 Error

[Nate Klingenstein]

Matt,

A random close XML comment tag would cause issues, yes.  Follow the --> by removing the -->.

<MetadataProvider id="CasMetadata"
                      xsi:type="FilesystemMetadataProvider"
                      metadataFile="PATH_TO_YOUR_METADATA"
                      indexesRef="shibboleth.CASMetadataIndices" />
    -->

</MetadataProvider>