unknown block-vault-backend option, skipping it on launching nodeos v2.2.0-rc1.

[zhopen]

Launch nodeos v2.2.0-rc1 with options in coinfig.ini

  plugin = eosio::blockvault_client_plugin 
  block-vault-backend = "vault:[email protected]" 

and error is below:

APPBASE: Warning: The following configuration items in the config.ini file are redundantly set to
         their default value:
             backing-store
         Explicit values will override future changes to application defaults. Consider commenting out or
         removing these items.
error 2021-08-20T03:51:57.842 nodeos    blockvault_client_plug:43     plugin_initialize    ] unknown block-vault-backend option, skipping it

[praphael]

Can you try

block-vault-backend = "postgresql://vault:[email protected]"