Undocumented dependency withr >=2.4.0

[stroberts]

Hi there, don't have time to document this as thoroughly as I'd like, but I have some strong indicia that the latest version of mice (v3.14.0) has a dependency on withr >=2.4.0, which is not specified in the DESCRIPTION file. Specifically I encountered issues installing mice with withr v2.3.0 below:

> ** byte-compile and prepare package for lazy loading
> Error: object 'local_seed' is not exported by 'namespace:withr'
> Execution halted                     
> ERROR: lazy loading failed for package 'mice'

which was easily addressed by updating withr to the latest CRAN version (v2.4.2). I note that withr is an explicit dependency listed in the DESCRIPTION but has no version requirement.

~I'm sorry I haven't been able to dig up the reference to either local_seed's use in this package, nor when between 2.3.0 and 2.4.2 local_seed became an exported function.~ Update -- it turns out withr put it right in NEWS: -- the dependency is on withr (>=2.4.0) Please let me know if further documentation of the error is needed.

[stefvanbuuren]

Thanks for alerting and the helpful info.

This is a new dependency. I wasn't aware that withr versions before 2.4.0 (January 2021) have this problem. Commit b85551e adds the version (>= 2.4.0) on the withr dependency.

Here's what I added to news:

@str-amg reported that the new dependency on withr package should have version 2.4.0 (published in January 2021) or higher. Version withr 2.3.0 and before may give Error: object 'local_seed' is not exported by 'namespace:withr'. Either update manually, or install the patched version mice 3.14.1 from GitHub. (#445)

Hope this solves the problem.

[stefvanbuuren]

Reopening to give it higher visibility.

[gerkovink]

@stefvanbuuren I've pinned the issue. You can close if you want - it'll remain at the top of the issues page