[ Started: 2023-03-23 21:41:56 CET ] [ cosmosR v1.5.1 for BioC-3.17 from https://github.com/saezlab/cosmosR@master ] * checking for file ‘./DESCRIPTION’ ... OK * preparing ‘cosmosR’: * checking DESCRIPTION meta-information ... OK * installing the package to build vignettes * creating vignettes ... ERROR --- re-building ‘tutorial.Rmd’ using rmarkdown Warning in png(..., res = dpi, units = "in") : unable to open connection to X11 display '' Error: processing vignette 'tutorial.Rmd' failed with diagnostics: Functions that produce HTML output found in document targeting markdown_strict-yaml_metadata_block output. Please change the output type of this document to HTML. Alternatively, you can allow HTML output in non-HTML formats by adding this option to the YAML front-matter of your rmarkdown file: always_allow_html: true Note however that the HTML output will not be visible in non-HTML formats. --- failed re-building ‘tutorial.Rmd’ SUMMARY: processing the following file failed: ‘tutorial.Rmd’ Error: Vignette re-building failed. Execution halted [ Finished: 2023-03-23 21:42:03 CET ]