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https://issues.apache.org/jira/browse/SPARK-23667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16396842#comment-16396842
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Apache Spark commented on SPARK-23667:
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User 'gczsjdy' has created a pull request for this issue:
https://github.com/apache/spark/pull/20809
> Scala version check will fail due to launcher directory doesn't exist
> ---------------------------------------------------------------------
>
> Key: SPARK-23667
> URL: https://issues.apache.org/jira/browse/SPARK-23667
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: Chenzhao Guo
> Priority: Major
>
> In some cases when outer project use pre-built Spark as dependency,
> {{getScalaVersion}} will fail due to {{launcher}} directory doesn't exist.
> This PR also checks in {{jars}} directory.
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