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### Running command:
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###   /home/biocbuild/bbs-3.22-bioc/R/bin/R CMD build --keep-empty-dirs --no-resave-data --md5 rfaRm
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* checking for file ‘rfaRm/DESCRIPTION’ ... OK
* preparing ‘rfaRm’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘rfaRm.Rmd’ using rmarkdown

Quitting from rfaRm.Rmd:166-170 [unnamed-chunk-11]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `writeLines()`:
! can only write character objects
---
Backtrace:
    ▆
 1. └─rfaRm::rfamSeedAlignment(...)
 2.   └─base::writeLines(alignment, con = filename)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'rfaRm.Rmd' failed with diagnostics:
can only write character objects
--- failed re-building ‘rfaRm.Rmd’

SUMMARY: processing the following file failed:
  ‘rfaRm.Rmd’

Error: Vignette re-building failed.
Execution halted