I have installed Biostrings R package in R version 3.6.2. When check with travis CI, I got the following error:
@jeroen and @jimhester
Error: (converted from warning) package ‘Biostrings’ is not available (for R version 3.6.2)
If your package depends on Bioconductor packages you need to specify that in your yaml file and ensure your package has a BiocViews:
entry in the DESCRIPTION
.
See https://docs.travis-ci.com/user/languages/r/#bioconductor for details