Adrian,
The first thing that comes to mind is the possibility that you have something
in a file that runs when you start up R such as Rprofile.site.
Mark
R. Mark Sharp, Ph.D.
Data Scientist and Biomedical Statistical Consultant
7526 Meadow Green St.
San Antonio, TX 78251
mobile: 210-218-2868
rms
I am not getting any error with Catalina 10.15.2
> install.packages("regtools", repo = "https://cloud.r-project.org";)
also installing the dependency ‘dummies’
trying URL
'https://cloud.r-project.org/bin/macosx/el-capitan/contrib/3.6/dummies_1.5.6.tgz'
Content type 'application/x-gzip' length