Hi all, AppVeyor is currently broken assuming the flaky Github authorization issue ( https://help.appveyor.com/discussions/problems/11287-the-build-phase-is-set-to-msbuild-mode-default-but-no-visual-studio-project-or-solution-files-were-found ).
AppVeyor build is specific to SparkR (on WIndows) so could be ignored in most cases for now.
