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https://issues.apache.org/jira/browse/MAHOUT-2023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16258258#comment-16258258
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Pat Ferrel commented on MAHOUT-2023:
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Whoa, that is a big clue I think. Everything without a scala.compat.version is
included in the file mahout-spark_2.10-0.13.1-SNAPSHOT-dependency-reduced.jar
or whatever is generated for the Scala version but none of the classes that use
scala.compat.version to resolve the classname.
Big clue but not sure where it leads [~rawkintrevo_apache] Any idea where to
look from here?
> Drivers broken, scopt classes not found
> ---------------------------------------
>
> Key: MAHOUT-2023
> URL: https://issues.apache.org/jira/browse/MAHOUT-2023
> Project: Mahout
> Issue Type: Bug
> Components: build
> Affects Versions: 0.13.1
> Environment: any
> Reporter: Pat Ferrel
> Assignee: Pat Ferrel
> Priority: Blocker
> Fix For: 0.13.1
>
>
> Type `mahout spark-itemsimilarity` after Mahout is installed properly and you
> get a fatal exception due to missing scopt classes.
> Probably a build issue related to incorrect versions of scopt being looked
> for.
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