RocksdB plugin fails to load with "Loading of unknown plugin ROCKSDB_CFSTATS is prohibited..."

  2017-12-16 17:20:29 0 [Warning] Plugin 'ROCKSDB' is of maturity level alpha while the server is beta

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_CFSTATS is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_DBSTATS is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_PERF_CONTEXT is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_PERF_CONTEXT_GLOBAL is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_CF_OPTIONS is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_COMPACTION_STATS is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Can't open shared library 'ha_rocksdb.so' (errno: 1, Loading of unknown plugin ROCKSDB_GLOBAL_INFO is prohibited by --plugin-maturity=alpha)

  2017-12-16 17:20:29 0 [ERROR] Couldn't load plugins from 'ha_rocksdb.so'.

  2017-12-16 17:20:29 0 [Note] RocksDB: 5 column families found

  2017-12-16 17:20:29 0 [Note] RocksDB: Column Families at start:

...

  2017-12-16 17:20:29 0 [Note] RocksDB: Table_store: loaded DDL data for 9 tables

  2017-12-16 17:20:30 0 [Note] RocksDB: global statistics using get_sched_indexer_t indexer

  2017-12-16 17:20:30 0 [Note] MyRocks storage engine plugin has been successfully initialized.