The vnfc.uuid must be left empty.

The Model mapping page has been updated to "n/a":
https://wiki.onap.org/display/DW/Dublin+Common+Model+Mapping

e.g, the uuid is currently filled with the model-id:

"vnfcList": [
{
"uuid": "pomba-demo-sdc-model-002-version002",
"name": "PombaDemoCust_002-vnfc-id-002",
"modelVersionID": "pomba-demo-sdc-model-002-version002",