spark2.2错误 java.lang.UnsupportedOperationException: No Encoder found for org.apache.spark.sql.Row解决

spark2.2错误 java.lang.UnsupportedOperationException: No Encoder found for org.apache.spark.sql.Row解决办 一、错误描述: Exception in thread "main" java.lang.UnsupportedOperationException: No Encoder found for or
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