Hi. which Flink version are you using? Starting from Flink 0.10., "groupBy" has been renamed to "keyBy".
Where did you find the "groupBy" example? On Wed, Jan 20, 2016 at 3:37 PM, Vinaya M S <vinay...@gmail.com> wrote: > Hi, > > I'm new to Flink. Can anyone help me with the error below. > > Exception in thread "main" java.lang.Error: Unresolved compilation > problem: > > The method groupBy(int) is undefined for the type > SingleOutputStreamOperator<Tuple2<String,Integer>,capture#1-of ?> > > > The code snippet is: > > DataStream<Tuple2<String, Integer>> dataStream = env > > .socketTextStream("localhost", 9999) > > .flatMap(new Splitter()) > > .groupBy(0) > > .sum(1); > > > Thank you. >