Error in loadNamespace(name) : there is no package called 'utf8'

[rmsharp]

using R Under development (unstable) (2020-04-22 r78281) (1.2s)
─ using platform: x86_64-w64-mingw32 (64-bit)

Different runs can produce different packages that are not available. I had 'pillar' not available twice in a row.

I preparation for a CRAN submission of github.com/rmsharp/nprcgenekeepr

checking examples with --run-donttest (26.8s)
Running examples in 'nprcgenekeepr-Ex.R' failed
The error most likely occurred in:

base::assign(".ptime", proc.time(), pos = "CheckExEnv")

Name: makeRelationClassesTable

Title: Make relation classes table from 'kin' dataframe.

Aliases: makeRelationClassesTable

** Examples

No test:

library(nprcgenekeepr)
suppressMessages(library(dplyr))

qcPed <- nprcgenekeepr::qcPed
bkmat <- kinship(qcPed$id, qcPed$sire, qcPed$dam, qcPed$gen,

•              sparse = FALSE)
  

kin <- convertRelationships(bkmat, qcPed)
relClasses <- makeRelationClassesTable(kin)
relClasses$Relationship Class <- as.character(relClasses$Relationship Class)
relClassTbl <- kin[!kin$relation == "Self", ] %>%

• summarise(count = n())

relClassTbl

• group_by(relation) %>%
  Error in loadNamespace(name) : there is no package called 'utf8'
  Calls: ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
  Execution halted

[joelgombin]

I have a similar problem when preparing for a CRAN submission for joelgombin/banR.
When running rhub::check_for_cran(), I get:

checking CRAN incoming feasibility ... Note_to_CRAN_maintainers
   Maintainer: 'Joel Gombin <joel.gombin@gmail.com>'
✓  checking package namespace information
E  checking package dependencies
   Package required but not available: 'utf8'

I actually tried to include utf8 because otherwise the vignette building would fail with: there is no package called 'utf8'.

[gaborcsardi]

This is probably the same as this issue: #367 (comment)

[tlorusso]

I'm runing into the same problem:

* checking examples with --run-donttest ... ERROR
Running examples in 'swissdd-Ex.R' failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: canton_json_to_dfr
> ### Title: Transform a opendata.swiss cantonal results json into a tibble
> ### Aliases: canton_json_to_dfr
> 
> ### ** Examples
> 
> 
> #most recent vote
> results <- canton_json_to_dfr()
> 
> # transform the json for a single votedate at counting district level
> canton_json_to_dfr(votedate="2020-02-09",geolevel = "zh_counting_districts")
Error in loadNamespace(name) : there is no package called 'utf8'
Calls: <Anonymous> ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted

[gaborcsardi]

Did you try the workaround referred to in the previous comment?

[tlorusso]

Yes and it works fine.

Thanks :)

[magic-lantern]

Just to clarify things for others looking at this same issue: I used the below as recommended by @gaborcsardi - it fixed my utf8 build issue.

rhub::check(
  platform="windows-x86_64-devel",
  env_vars=c(R_COMPILE_AND_INSTALL_PACKAGES = "always")
)