[R] tidyverse repeating error: "object 'rlang_mut_env_parent' not found"

[Szumiloski, John]

Thank you Hadley.   This was so close, but actually the other way around:  I uninstalled the latest rlang v0.1.2 from ~10 Aug and reinstalled v 0.1.1, now everything runs smoothly.  -J

-----Original Message-----
From: Hadley Wickham [mailto:h.wickham at gmail.com]
Sent: Monday, 14 August, 2017 2:35 PM
To: Szumiloski, John <John.Szumiloski at bms.com>
Cc: r-help at r-project.org
Subject: Re: [R] tidyverse repeating error: "object 'rlang_mut_env_parent' not found"

The most likely explanation is you have a new version of dplyr/tibble and an old version of rlang. Try re-installing rlang.

Hadley

On Mon, Aug 14, 2017 at 9:26 AM, Szumiloski, John <John.Szumiloski at bms.com> wrote:
> UseRs,
>
> When doing some data manipulations using the tidyverse, I am repeatedly getting the same error message in now three separate situations.  I can write up a reproducible example, but want to lay out the high-level issues in case someone recognizes exactly what is happening here.
>
> The error is:
>
> Error in mut_env_parent(overscope$.top_env, lexical_env) :
>   object 'rlang_mut_env_parent' not found
>
> and it occurs in three situations:
>
>
> 1)      Using tidyr::nest() on an output from dplyr::group_by()
>
> 2)      Using tibble::tibble() with <name> = <value> arguments
>
> 3)      Using dplyr::select() on a tibble to select two columns
>
> Any obvious clues as to what's happening here? The only non-base packages loaded are current tidyverse, forcats, magrittr, readxl and stringr.
>
> Thanks,
> John
> John Szumiloski, Ph.D.
> Principal Scientist, Statistician
> Pharmaceutical Development / Drug Product Science & Technology
> NBR105-1-1411
>
> Bristol-Myers Squibb
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>
> (732) 227-7167
>
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