--- running R CMD build for hydroGOF (project hydroGOF)
* checking for file 'hydroGOF/DESCRIPTION' ... OK
* preparing 'hydroGOF':
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building 'hydroGOF_Vignette.Rmd' using rmarkdown
Error: processing vignette 'hydroGOF_Vignette.Rmd' failed with diagnostics:
The 'rmarkdown' package should be installed and declared as a dependency of the 'hydroGOF' package (e.g., in the 'Suggests' field of DESCRIPTION), because the latter contains vignette(s) built with the 'rmarkdown' package. Please see https://github.com/yihui/knitr/issues/1864 for more information.
--- failed re-building 'hydroGOF_Vignette.Rmd'

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

Error: Vignette re-building failed.
Execution halted
*** WARNING: expected tar ball hydroGOF_0.4-1.tar.gz does not exist!
hydroGOF is not a package in hydroGOF_0.4-1.tar.gz, skipping R CMD check