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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 GEOquery
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* checking for file ‘GEOquery/DESCRIPTION’ ... OK
* preparing ‘GEOquery’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘GEOquery.Rmd’ using rmarkdown

Quitting from GEOquery.Rmd:134-139 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `open.connection()`:
! cannot open the connection
---
Backtrace:
     ▆
  1. └─GEOquery::getGEO("GSE2553", GSEMatrix = TRUE)
  2.   └─GEOquery:::getAndParseGSEMatrices(...)
  3.     └─GEOquery:::getDirListing(sprintf(gdsurl, stub, GEO))
  4.       ├─xml2::read_html(url)
  5.       └─xml2:::read_html.default(url)
  6.         ├─base::suppressWarnings(...)
  7.         │ └─base::withCallingHandlers(...)
  8.         ├─xml2::read_xml(x, encoding = encoding, ..., as_html = TRUE, options = options)
  9.         └─xml2:::read_xml.character(...)
 10.           └─xml2:::read_xml.connection(...)
 11.             ├─base::open(x, "rb")
 12.             └─base::open.connection(x, "rb")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

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

Error: Vignette re-building failed.
Execution halted