Github user sachingoel0101 commented on the pull request:
https://github.com/apache/flink/pull/1338#issuecomment-156477959
Yes. I will write some better exception reporting. As for this particular
error, how can it be detected?
From what I observed, ideally, `Client#getOptimizedPlan` sets
`OptimizerPlanEnvironment` which in turn constructs an `StreamPlanEnvironment`.
But when the scala version doesn't match, the `execute` call delegates to the
default `ExecutionEnvironment#execute` instead of
`StreamPlanEnvironment#execute`, which of course leads to error since yours was
a Streaming program. Can't quite see why that should happen.
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