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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data concordexR
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* checking for file ‘concordexR/DESCRIPTION’ ... OK
* preparing ‘concordexR’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘concordex-demo.Rmd’ using rmarkdown
2024-04-16 16:00:57.329 R[71820:449147883] XType: Using static font registry.

Quitting from lines 113-114 [unnamed-chunk-8] (concordex-demo.Rmd)
Error: processing vignette 'concordex-demo.Rmd' failed with diagnostics:
function 'as_cholmod_sparse' not provided by package 'Matrix'
--- failed re-building ‘concordex-demo.Rmd’

--- re-building ‘overview.Rmd’ using rmarkdown
--- finished re-building ‘overview.Rmd’

SUMMARY: processing the following file failed:
  ‘concordex-demo.Rmd’

Error: Vignette re-building failed.
Execution halted