mardi 21 avril 2015

saveTocassandra could not find implicit value for parameter rwf

i'm trying to save a dataset in Cassandra database using spark scala, But i am getting an exception while running a code: link used: [http://ift.tt/1yLe6d7]

errooooooooooooooooor:

could not find implicit value for parameter rwf: com.datastax.spark.connector.writer.RowWriterFctory[FoodToUserIndex] food_index.saveToCassandra("tutorial", "food_to_user_index") ^

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