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### Running command:
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###   /home/biocbuild/R/R/bin/R CMD build --keep-empty-dirs --no-resave-data GA4GHclient
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* checking for file ‘GA4GHclient/DESCRIPTION’ ... OK
* preparing ‘GA4GHclient’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘GA4GHclient.Rmd’ using rmarkdown

Quitting from GA4GHclient.Rmd:221-225 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `seqlevelsStyle(gr) <- "NCBI"`:
! could not find function "seqlevelsStyle<-"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'GA4GHclient.Rmd' failed with diagnostics:
could not find function "seqlevelsStyle<-"
--- failed re-building ‘GA4GHclient.Rmd’

SUMMARY: processing the following file failed:
  ‘GA4GHclient.Rmd’

Error: Vignette re-building failed.
Execution halted