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https://issues.apache.org/jira/browse/SPARK-46373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796385#comment-17796385
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Bruce Robbins commented on SPARK-46373:
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Maybe due to this (from [the docs|https://spark.apache.org/docs/3.5.0/]):
{quote}Spark runs on Java 8/11/17, Scala 2.12/2.13, Python 3.8+, and R
3.5+.{quote}
Scala 3 is not listed as a supported version.
> Create DataFrame Bug
> --------------------
>
> Key: SPARK-46373
> URL: https://issues.apache.org/jira/browse/SPARK-46373
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.5.0
> Reporter: Bleibtreu
> Priority: Major
>
> Scala version is 3.3.1
> Spark version is 3.5.0
> I am using spark-core 3.5.1. I am trying to create a DataFrame through the
> reflection api, but "No TypeTag available for Person" will appear. I have
> tried for a long time, but I still don't quite understand why TypeTag cannot
> recognize my Person case class.
> {code:java}
> import sparkSession.implicits._
> import scala.reflect.runtime.universe._
> case class Person(name: String)
> val a = List(Person("A"), Person("B"), Person("C"))
> val df = sparkSession.createDataFrame(a)
> df.show(){code}
> !https://media.discordapp.net/attachments/839723072239566878/1183747749204725821/image.png?ex=65897600&is=65770100&hm=4eeba8d8499499439590a34260f8b441c6594c572c545f5f61f8dc65beeb6a4b&=&format=webp&quality=lossless&width=1178&height=142!
> I tested it and it is indeed a problem unique to Scala3
> There is no problem on Scala2.13
>
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