[ESS-bugs] ess-mode 18.10.2 [Released git: d4cd65da6dbf]; Error in process sentinel

[Alex Branham]

On Tue 12 Feb 2019 at 15:45, Shawn Way <SWay using meco.com> wrote:

> I'm getting the following error:
>
> error in process sentinel: apply: Not enough arguments for format string
> error in process sentinel: Not enough arguments for format string
>
> from ess when formatting new R code such as below:
>
> data <-data.frame(x=c(2))
>
> data <- data %>%
>        mutate(y=x^2)
>
>
> This occurs any time that I have the %>% operator in the code.  The
> confusing part is that when I edit older code, I don't have the issue.
>
> Another thing that is different is that when editing the new code, the
> mode line is similar to
>
>    NEW.R    All (ESS[R] [none] Flymake:Wait[0 0])
>
> and the Wait never changes.
>
> When I edit the older code, the Wait disappears after each edit and
> reappears after a second afterwards.

This happens because the R package lintr updated their version without
including the features slated for the next version.[1] You can fix it in
one of several ways:

1. Install lintr from github (e.g.
   devtools::install_github("jimhester/lintr")).

2. Disable flymake (setq ess-use-flymake nil).

3. Install the development version of ESS (from MELPA, see
   https://melpa.org/#/getting-started for how to go about doing that).


Hope that helps,
Alex

Footnotes:
[1]  https://github.com/emacs-ess/ESS/issues/803