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via Stack Overflow by faustineinsun
, 1 year ago
This exception has no message.
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via Stack Overflow by Mounir Hamdane
, 1 year ago
java.lang.NullPointerException: 	at org.apache.spark.sql.Dataset.schema(Dataset.scala:393)	at org.apache.spark.sql.Dataset.toDF(Dataset.scala:339)	at org.apache.spark.sql.Dataset.showString(Dataset.scala:239)	at org.apache.spark.sql.Dataset.show(Dataset.scala:526)	at org.apache.spark.sql.Dataset.show(Dataset.scala:486)	at org.apache.spark.sql.Dataset.show(Dataset.scala:495)