机器学习PAI这个 filePath 如何写？Caused by: java.lang.IllegalArgumentException: In CsvSourceBatchOp,Error in fromJson the paramValue : filePath
java.lang.RuntimeException: No data sinks have been created yet. A program needs at least one sink that consumes data. Examples are writing the data set or printing it.
at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:948) ~[flink-java-1.9.0.jar:1.9.0]
at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:926) ~[flink-java-1.9.0.jar:1.9.0]
at org.apache.flink.api.java.RemoteEnvironment.execute(RemoteEnvironment.java:167) ~[flink-java-1.9.0.jar:1.9.0]
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