Could someone please help me figure out what is happening on my RStudio? Thanks
After I re-installed the RStudio, I encounter problem and cannot use it.
When I try to open RMD file, a small window pops up saying
"Required package versions could not be found:
digest 0.6 is not available
caTools 1.14 is not available
bitops1.0-6 is not available
check that getOption("repos") refers to a CRAN repository that contains the needed package versions."
then I followed the instruction and get the following message: