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### Running command:
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###   /home/biocbuild/bbs-3.21-bioc/R/bin/R CMD build --keep-empty-dirs --no-resave-data netDx
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* checking for file ‘netDx/DESCRIPTION’ ... OK
* preparing ‘netDx’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘ThreeWayClassifier.Rmd’ using rmarkdown

Quitting from ThreeWayClassifier.Rmd:301-322 [unnamed-chunk-24]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `file()`:
! cannot open the connection
---
Backtrace:
    x
 1. +-base::suppressMessages(...)
 2. | \-base::withCallingHandlers(...)
 3. \-netDx::buildPredictor(...)
 4.   +-base::grepl(pattern = ",", readLines(tmp, n = 6))
 5.   | \-base::is.factor(x)
 6.   \-base::readLines(tmp, n = 6)
 7.     \-base::file(con, "r")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'ThreeWayClassifier.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building 'ThreeWayClassifier.Rmd'

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

Error: Vignette re-building failed.
Execution halted