Checked the demo and find that its using a quite outdated flink version(0.10.0). And you are trying to run it with Flink 1.7.2. That's why the NoClassDefFound error happens.
I'd suggest you try examples in current Flink repo. references: https://ci.apache.org/projects/flink/flink-docs-release-1.9/getting-started/examples/ https://ci.apache.org/projects/flink/flink-docs-release-1.9/getting-started/tutorials/local_setup.html Thanks, Zhu Zhu alaa <alaa.abut...@hotmail.com> 于2019年9月5日周四 下午3:10写道： > thank for your reply but Unfortunately this solution is not suitable > > < > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t1965/Screenshot_from_2019-09-05_09-09-12.png> > > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ >
