Map config, map;
ElementList elements;

elements.addAscii ("DefaultConsumer", "Consumer_1");
map.addKeyAscii ("Consumer_1", MapEntry::AddEnum,
                 ElementList ().addAscii ("Logger", "Logger_1")
                               .complete ()).complete();
elements.addMap ("ConsumerList", map).complete ();
map.clear ();


config.addKeyAscii ("ConsumerGroup", MapEntry::AddEnum, elements);
elements.clear ();

map.addKeyAscii ("Logger_1", MapEntry::AddEnum,
                 ElementList ().addEnum ("LoggerType",     1) // stdout
                               .addEnum ("LoggerSeverity", 3) // errors
                               .complete ())
   .complete ();
elements.addMap ("LoggerList", map).complete ();
map.clear ();
config.addKeyAscii ("LoggerGroup", MapEntry::AddEnum, elements).complete ();

OmmConsumer consumer (OmmConsumerConfig ().username (user.c_str ())
                                          .host     (source.c_str ())
                                          .config   (config));

I would like to configure the EMA logger to output errors only and to stdout. However the code above causes the logger to output (to stdout) that it there is no logger configuration and defaults will be used - error see below.

Modifying the config to output to file, correctly outputs to file but error persists, albeit in the output file.

Can anyone say why the error below is logged?

The code above is a modified version of the EMA sample 421_MarketPrice_ProgrammaticConfig.

loggerMsg
    TimeStamp: ...
    ClientName: EmaConfig
    Severity: Error
    Text:    no configuration exists for consumer logger [LoggerGroup|LoggerList|Logger.Logger_1|]; will use logger defaults
loggerMsgEnd