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### Running command:
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###   chmod a+r UMI4Cats -R && E:\biocbuild\bbs-3.21-bioc\R\bin\R.exe CMD build --keep-empty-dirs --no-resave-data UMI4Cats
###
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* checking for file 'UMI4Cats/DESCRIPTION' ... OK
* preparing 'UMI4Cats':
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building 'UMI4Cats.Rmd' using rmarkdown
UMI4Cats_data_reduced/ref_genome/ucsc.hg19.chr16.rev.1.bt2: truncated gzip input
tar.exe: Error exit delayed from previous errors.

Quitting from UMI4Cats.Rmd:186-206 [demultiplex]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `open.connection()`:
! cannot open the connection
---
Backtrace:
     ▆
  1. └─UMI4Cats::demultiplexFastq(...)
  2.   ├─ShortRead::FastqStreamer(fq_R1)
  3.   └─ShortRead::FastqStreamer(fq_R1)
  4.     ├─methods::callGeneric(...)
  5.     │ └─base::eval(call, parent.frame())
  6.     │   └─base::eval(call, parent.frame())
  7.     ├─ShortRead::FastqStreamer(...)
  8.     └─ShortRead::FastqStreamer(...)
  9.       ├─base::open(con, "rb")
 10.       └─base::open.connection(con, "rb")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'UMI4Cats.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building 'UMI4Cats.Rmd'

SUMMARY: processing the following file failed:
  'UMI4Cats.Rmd'

Error: Vignette re-building failed.
Execution halted