Builds work fine on local Windows machine using devtools::check().
Full Travis log here. The offending information from R CMD check on the log:
Checking URLs requires 'libcurl' support in the R build
* checking package namespace information ... OK
* checking package dependencies ... ERROR
Package required but not available: ‘ggplot2’
Package suggested but not available: ‘FactoMineR’
The suggested packages are required for a complete check.
Checking can be attempted without them by setting the environment
variable _R_CHECK_FORCE_SUGGESTS_ to a false value.
Builds work fine on local Windows machine using devtools::check().
Full Travis log here. The offending information from R CMD check on the log: