Model

http://dld.netconfcentral.org/src/ietf-ipv4-unicast-routing@2014-05-24.yang

Errors

Line 166-167 - Provided relative path is wrong, can't be found in ietf-routing.yang

Line 200-201 - Same as above

Model

http://dld.netconfcentral.org/src/ietf-ipv6-unicast-routing@2014-05-25.yang

Line 567-568 - Same as above

Line 601-602 - Same as above

Works while providing absolute paths like this

path "/rt:routing-state/rt:routing-instance/rt:interfaces/"
+ "rt:interface/rt:name";

And there is probably no need to define this leaf explicitly, because grouping outgoing-interface in ietf-routing.yang seems to be identical.