I recently had to reload R (3.51). Ever since, whenever I load or update an option, I get a warning:
Warning: unable to access index for repository NA/src/contrib:
scheme not supported in URL 'NA/src/contrib/PACKAGES'
The source of this error is obviou. I looked at options$repos, and the last entry is:
I have been unable to remove this erroneous last entry permanently. Is there a way to reset the startup repos entry to remove this annoying, but apparently harmless, warning?
Thanks in advance for any help with this issue.