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https://issues.apache.org/jira/browse/SPARK-13262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15142664#comment-15142664
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Sun Rui commented on SPARK-13262:
---------------------------------
[~samalexg] Thanks for reporting this. This is unlikely to happen. Could you
tell use how to reproduce it?
> cannot coerce type 'environment' to vector of type 'list'
> ---------------------------------------------------------
>
> Key: SPARK-13262
> URL: https://issues.apache.org/jira/browse/SPARK-13262
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Affects Versions: 1.5.2
> Reporter: Samuel Alexander
>
> Occasionally getting the following error while using Spark R while
> constructing dataframe in R
> 16/02/09 13:28:06 WARN RBackendHandler: cannot find matching method class
> org.apache.spark.sql.api.r.SQLUtils.dfToCols. Candidates are:
> Error in as.vector(x, "list") :
> cannot coerce type 'environment' to vector of type 'list'
> Restarting SparkR fixed the error.
> What is the cause for this issue? How can we solve it?
>
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