sgw fails to start with ssl enabled

{

    "interface":":4984",

    "adminInterface": "0.0.0.0:4985",

    "maxIncomingConnections": 0,

    "maxCouchbaseConnections": 16,

    "maxFileDescriptors": 90000,

    "compressResponses": false,

    "logging": {"debug": {"enabled": true} },

    "databases":{

        "db":{

            "use_views": true,

            "username": "data-bucket",

            "password": "password",

            "server":"couchbases://192.168.33.10:11207",

            "bucket":"data-bucket"

        }

    }

}