Github user jan0sch commented on the issue: https://github.com/apache/zeppelin/pull/2811 It seems that flink 1.4 is build for scala 2.11 only. There are two options: 1. switch zeppelin to scala 2.11 2. downgrade the "update" to flink version 1.3.2 which was the last one cross published for scala 2.10 I would prefer option 1 as scala is currently at 2.12 with 2.13 on the horizon.
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