* using log directory 'd:/Rcompile/CRANpkg/local/4.4/mlr3cluster.Rcheck'
* using R version 4.4.1 (2024-06-14 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 13.2.0
    GNU Fortran (GCC) 13.2.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'mlr3cluster/DESCRIPTION' ... OK
* this is package 'mlr3cluster' version '0.1.9'
* 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 'mlr3cluster' can be installed ... OK
* checking installed package size ... OK
* checking package 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 whether startup messages can be suppressed ... [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 ... [18s] 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 examples ... [13s] OK
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [19s] ERROR
  Running 'testthat.R' [19s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > if (requireNamespace("testthat", quietly = TRUE)) {
  +   library("checkmate")
  +   library("testthat")
  +   library("mlr3")
  +   library("mlr3cluster")
  +   test_check("mlr3cluster")
  + }
  Using automatic sigma estimation (sigest) for RBF or laplace kernel 
   Setting default kernel parameters  
  Using automatic sigma estimation (sigest) for RBF or laplace kernel 
   Setting default kernel parameters  
  [ FAIL 1 | WARN 13 | SKIP 5 | PASS 1672 ]
  
  ══ Skipped tests (5) ═══════════════════════════════════════════════════════════
  • On CRAN (5): 'test_mlr_learners_clust_cobweb.R:2:1',
    'test_mlr_learners_clust_em.R:2:1', 'test_mlr_learners_clust_ff.R:2:1',
    'test_mlr_learners_clust_simplekmeans.R:2:1',
    'test_mlr_learners_clust_xmeans.R:1:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test_LearnerClust.R:38:3'): empty predict set (#421) ────────────────
  Error in `UseMethod("create_empty_prediction_data")`: no applicable method for 'create_empty_prediction_data' applied to an object of class "c('TaskClust', 'TaskUnsupervised', 'Task', 'R6')"
  Backtrace:
      ▆
   1. └─learner$predict(task, hout$test_set(1)) at test_LearnerClust.R:38:3
   2.   └─mlr3:::.__Learner__predict(...)
   3.     └─mlr3:::learner_predict(self, task, row_ids)
   4.       └─mlr3::create_empty_prediction_data(task, learner)
  
  [ FAIL 1 | WARN 13 | SKIP 5 | PASS 1672 ]
  Error: Test failures
  Execution halted
* checking PDF version of manual ... [33s] OK
* checking HTML version of manual ... [10s] OK
* DONE
Status: 1 ERROR