leafref does not exist in openconfig-module-catalog.yang

[dliu2223]

proto_generator -add_schemapaths=false
-base_import_path=github.com/openconfig/public/release/proto
-compress_paths -consistent_union_enum_names -typedef_enum_with_defmod
-enum_package_name=enums
-exclude_modules=ietf-interfaces
-go_package_base=github.com/openconfig/public/release/proto
-ignore_circdeps -logtostderr
-output_dir=proto
-package_name=module_catalog
-path=/root/dev_ubuntu/go/src/github.com/openconfig/public
models/catalog/openconfig-module-catalog.yang

F0502 10:03:36.002001 281 protogenerator.go:136] key name had a leafref key (/openconfig-module-catalog/organizations/organization/feature-bundles/feature-bundle/feature-bundles/feature-bundle/name) in dir feature-bundle that did not exist ([.. .. .. .. .. .. .. organizations organization[name=current() .. publisher] feature-bundles feature-bundle name]), key name had a leafref key (/openconfig-module-catalog/organizations/organization/implementations/implementation/feature-bundles/feature-bundle/name) in dir feature-bundle that did not exist ([.. .. .. .. .. .. .. organizations organization[name=current() .. publisher] feature-bundles feature-bundle name])