This means that Zero is not in the same range as the given UID. You can use:
/assign?what=uids&num=100This would allocatenumuids and return a JSON map containingstartIdandendId, both inclusive. This id range can be safely assigned externally to new nodes during data ingestion.
to increase the UIDs to be available.
BTW, Dgraph only accepts UIDs in Dgraph’s pattern and generated by Dgraph.