Unable to send log messages to SumoLogic from Eclipse

[binjiangx]

Hi,
I'm using the SumoLogic appender (sumologic-log4j2-appender) in log4j2.xml in a small test application that is running on Eclipse. I am sending a log info and a error messages and they don't show up at all in SumoLogic. But the console log says that :"main DEBUG Sending message to Sumo: 2018-10-30 15:17:41,730 -0600 [main] INFO com.sumologic.log4j.SumoLogicAppender - Hello Document Manager from Logback!"
Is there some thing I need to set up on the appender to successfully send messages?

Thanks,

DMLogger.zip