* using log directory 'd:/Rcompile/CRANpkg/local/4.4/explore.Rcheck'
* using R version 4.4.3 (2025-02-28 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 13.3.0
    GNU Fortran (GCC) 13.3.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'explore/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'explore' version '1.3.6'
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'explore' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking 'build' directory ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [2s] OK
* checking whether the package can be loaded with stated dependencies ... [2s] OK
* checking whether the package can be unloaded cleanly ... [2s] OK
* checking whether the namespace can be loaded with stated dependencies ... [2s] OK
* checking whether the namespace can be unloaded cleanly ... [2s] OK
* checking loading without being on the library search path ... [2s] OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [16s] OK
* checking Rd files ... [2s] OK
* checking Rd metadata ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... [19s] ERROR
Running examples in 'explore-Ex.R' failed
The error most likely occurred in:

> ### Name: explain_xgboost
> ### Title: Explain a binary target using xgboost
> ### Aliases: explain_xgboost
> 
> ### ** Examples
> 
> data <- use_data_iris()
> data$is_versicolor <- ifelse(data$Species == "versicolor", 1, 0)
> data$Species <- NULL
> explain_xgboost(data, target = is_versicolor, log = FALSE)
Warning in check.deprecation(deprecated_cv_params, match.call(), ...) :
  Passed invalid function arguments: eval_metric, nthread. These should be passed as a list to argument 'params'. Conversion from argument to 'params' entry will be done automatically, but this behavior will become an error in a future version.
Warning in check.custom.obj(params, objective) :
  Argument 'objective' is only for custom objectives. For built-in objectives, pass the objective under 'params'. This warning will become an error in a future version.
Error in all_nrounds[k] <- cv$best_iteration : 
  replacement has length zero
Calls: explain_xgboost
Execution halted
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [16s] OK
  Running 'testthat.R' [16s]
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [159s] ERROR
Error(s) in re-building vignettes:
--- re-building 'abtest.Rmd' using rmarkdown
--- finished re-building 'abtest.Rmd'

--- re-building 'clean-drop.Rmd' using rmarkdown
--- finished re-building 'clean-drop.Rmd'

--- re-building 'data.Rmd' using rmarkdown
--- finished re-building 'data.Rmd'

--- re-building 'describe.Rmd' using rmarkdown
--- finished re-building 'describe.Rmd'

--- re-building 'explain.Rmd' using rmarkdown

Quitting from explain.Rmd:65-69 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `all_nrounds[k] <- cv$best_iteration`:
! replacement has length zero
---
Backtrace:
    ▆
 1. └─explore::explain_xgboost(data %>% drop_var_not_numeric(), target = buy)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'explain.Rmd' failed with diagnostics:
replacement has length zero
--- failed re-building 'explain.Rmd'

--- re-building 'explore-mtcars.Rmd' using rmarkdown
--- finished re-building 'explore-mtcars.Rmd'

--- re-building 'explore-penguins.Rmd' using rmarkdown
--- finished re-building 'explore-penguins.Rmd'

--- re-building 'explore-titanic.Rmd' using rmarkdown
--- finished re-building 'explore-titanic.Rmd'

--- re-building 'explore.Rmd' using rmarkdown
--- finished re-building 'explore.Rmd'

--- re-building 'predict.Rmd' using rmarkdown
--- finished re-building 'predict.Rmd'

--- re-building 'report-target.Rmd' using rmarkdown
--- finished re-building 'report-target.Rmd'

--- re-building 'report-targetpct.Rmd' using rmarkdown
--- finished re-building 'report-targetpct.Rmd'

--- re-building 'report.Rmd' using rmarkdown
--- finished re-building 'report.Rmd'

--- re-building 'tips-tricks.Rmd' using rmarkdown
--- finished re-building 'tips-tricks.Rmd'

SUMMARY: processing the following file failed:
  'explain.Rmd'

Error: Vignette re-building failed.
Execution halted

* checking PDF version of manual ... [19s] OK
* checking HTML version of manual ... [16s] OK
* DONE
Status: 2 ERRORs