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https://issues.apache.org/jira/browse/ARROW-7789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032609#comment-17032609
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Neal Richardson commented on ARROW-7789:
----------------------------------------

This works on my machine (macOS 10.14, R 3.6.2, latest arrow on master branch). 
Could you:

1. Try installing a development version of the package and retry? See 
http://arrow.apache.org/docs/r/#installing-a-development-version
2. If it is still erroring for you, could you include a {{traceback()}} of the 
error and your {{sessionInfo()}}?

> [R] Unknown error when using arrow::write_feather()  in R 3.5.3
> ---------------------------------------------------------------
>
>                 Key: ARROW-7789
>                 URL: https://issues.apache.org/jira/browse/ARROW-7789
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: R
>            Reporter: Martin
>            Priority: Minor
>
> Unknown error when using arrow::write_feather()  in R 3.5.3
> pb = as.data.frame(seq(1:100))
> pbFilename <- file.path(getwd(), "reproduceBug.feather")
>  arrow::write_feather(x = pb, sink = pbFilename)
> >Error in exists(name, envir = envir, inherits = FALSE) : 
>  > use of NULL environment is defunct
>  
> packageVersion('arrow')
> [1] ‘0.15.1.1’



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