Thank you!This is complete solving the problem.
-- View this message in context: http://apache-flink-incubator-user-mailing-list-archive.2336050.n4.nabble.com/Error-in-reduceGroup-operator-when-changing-the-Flink-version-from-0-7-to-0-8-tp785p793.html Sent from the Apache Flink (Incubator) User Mailing List archive. mailing list archive at Nabble.com.