Spark SQL入门：创建SparkSession时import spark.implicits._ 报错： error: value implicits is not a member of...

Spark SQL入门：创建SparkSession时import spark.implicits._ 报错： error: value implicits is not a member of...

如下所示：

scala> import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.SparkSession

scala> 

scala> val spark = SparkSession
spark: org.apache.spark.sql.SparkSession.type = org.apache.spark.sql.SparkSession$@614da024

scala>   .builder()
res12: spark.Builder = org.apache.spark.sql.SparkSession$Builder@11722350

scala>   .appName("Spark SQL basic example")
res13: spark.Builder = org.apache.spark.sql.SparkSession$Builder@11722350

scala>   .config("spark.some.config.option", "some-value")
res14: spark.Builder = org.apache.spark.sql.SparkSession$Builder@11722350

scala>   .getOrCreate()
20/02/02 18:10:32 WARN SparkSession$Builder: Using an existing SparkSession; some configuration may not take effect.
res15: org.apache.spark.sql.SparkSession = org.apache.spark.sql.SparkSession@1062f767

scala> 

scala> // For implicit conversions like converting RDDs to DataFrames

scala> import spark.implicits._
<console>:40: error: value implicits is not a member of object org.apache.spark.sql.SparkSession
       import spark.implicits._

报错原因：代码格式有问题

解决办法：

调整代码格式，如下所示：

scala> import org.apache.spark.sql.SparkSession

scala> val spark = SparkSession.builder().appName("Spark SQL basic example").config("spark.some.config.option", "some-value").getOrCreate()

scala> import spark.implicits._