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

Quitting from ggtreeExtra.Rmd:83-247 [singlelayer]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `get()`:
! object 'ggtree' not found
---
Backtrace:
     ▆
  1. └─tools::buildVignettes(dir = ".", tangle = TRUE)
  2.   ├─base::tryCatch(...)
  3.   │ └─base (local) tryCatchList(expr, classes, parentenv, handlers)
  4.   │   └─base (local) tryCatchOne(expr, names, parentenv, handlers[[1L]])
  5.   │     └─base (local) doTryCatch(return(expr), name, parentenv, handler)
  6.   └─engine$weave(file, quiet = quiet, encoding = enc)
  7.     └─knitr:::vweave_rmarkdown(...)
  8.       └─rmarkdown::render(...)
  9.         └─knitr::knit(knit_input, knit_output, envir = envir, quiet = quiet)
 10.           └─knitr:::process_file(text, output)
 11.             ├─xfun:::handle_error(...)
 12.             ├─base::withCallingHandlers(...)
 13.             └─knitr:::process_group(group)
 14.               └─knitr:::call_block(x)
 15.                 └─knitr:::block_exec(params)
 16.                   └─knitr:::eng_r(options)
 17.                     ├─knitr:::in_input_dir(...)
 18.                     │ └─knitr:::in_dir(input_dir(), expr)
 19.                     └─knitr (local) evaluate(...)
 20.                       └─evaluate::evaluate(...)
 21.                         ├─base::withRestarts(...)
 22.                         │ └─base (local) withRestartList(expr, restarts)
 23.                         │   ├─base (local) withOneRestart(withRestartList(expr, restarts[-nr]), restarts[[nr]])
 24.                         │   │ └─base (local) doWithOneRestart(return(expr), restart)
 25.                         │   └─base (local) withRestartList(expr, restarts[-nr])
 26.                         │     └─base (local) withOneRestart(expr, restarts[[1L]])
 27.                         │       └─base (local) doWithOneRestart(return(expr), restart)
 28.                         ├─evaluate:::with_handlers(...)
 29.                         │ ├─base::eval(call)
 30.                         │ │ └─base::eval(call)
 31.                         │ └─base::withCallingHandlers(...)
 32.                         └─watcher$print_value(ev$value, ev$visible, envir)
 33.                           ├─base::withVisible(handle_value(handler, value, visible, envir))
 34.                           └─evaluate:::handle_value(handler, value, visible, envir)
 35.                             └─handler$value(value, visible)
 36.                               └─knitr (local) fun(x, options = options)
 37.                                 ├─base::withVisible(knit_print(x, ...))
 38.                                 ├─knitr::knit_print(x, ...)
 39.                                 └─knitr:::knit_print.default(x, ...)
 40.                                   └─knitr::normal_print(x)
 41.                                     ├─base::print(x)
 42.                                     └─ggtree:::print.ggtree(x)
 43.                                       └─ggtree:::is_ggtree_interactive()
 44.                                         └─yulab.utils::get_cache_item("ggtree")
 45.                                           └─base::get(item, envir = env, inherits = FALSE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'ggtreeExtra.Rmd' failed with diagnostics:
object 'ggtree' not found
--- failed re-building ‘ggtreeExtra.Rmd’

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

Error: Vignette re-building failed.
Execution halted