Yea I'm wondering why the web server cannot be instantiated because changing the port 8081 to 9999 works well in the following demo sample of Flink. https://github.com/dataArtisans/flink-streaming-demo/blob/master/src/main/scala/com/dataartisans/flink_demo/utils/DemoStreamEnvironment.scala
so is the code of Flink syntax correct and I should try to find other issues? Best, Sendoh -- View this message in context: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Cannot-start-FlinkMiniCluster-WebServer-using-different-port-in-FlinkMiniCluster-tp4414p4420.html Sent from the Apache Flink User Mailing List archive. mailing list archive at Nabble.com.