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### Running command:
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###   /home/biocbuild/R/R/bin/R CMD build --keep-empty-dirs --no-resave-data PRONE
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* checking for file ‘PRONE/DESCRIPTION’ ... OK
* preparing ‘PRONE’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘Differential_Expression.Rmd’ using rmarkdown
Error: processing vignette 'Differential_Expression.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘Differential_Expression.Rmd’

--- re-building ‘Imputation.Rmd’ using rmarkdown
Error: processing vignette 'Imputation.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘Imputation.Rmd’

--- re-building ‘Normalization.Rmd’ using rmarkdown
Error: processing vignette 'Normalization.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘Normalization.Rmd’

--- re-building ‘PRONE.Rmd’ using rmarkdown
Error: processing vignette 'PRONE.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘PRONE.Rmd’

--- re-building ‘Preprocessing.Rmd’ using rmarkdown
Error: processing vignette 'Preprocessing.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘Preprocessing.Rmd’

--- re-building ‘Spike_In_Data.Rmd’ using rmarkdown
Error: processing vignette 'Spike_In_Data.Rmd' failed with diagnostics:
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
--- failed re-building ‘Spike_In_Data.Rmd’

SUMMARY: processing the following files failed:
  ‘Differential_Expression.Rmd’ ‘Imputation.Rmd’ ‘Normalization.Rmd’
  ‘PRONE.Rmd’ ‘Preprocessing.Rmd’ ‘Spike_In_Data.Rmd’

Error: Vignette re-building failed.
Execution halted