Rmarkdown file is not knitting, I am continously getting this error code.
processing file: cyclistic-bike-share-analysis—r-markdown-save.Rmd
|. | 2% [unnamed-chunk-1]
Quitting from lines 59-185 [unnamed-chunk-1] (cyclistic-bike-share-analysis—r-markdown-save.Rmd)

Error in contrib.url():
! trying to use CRAN without setting a mirror
Backtrace:

1. utils::install.packages(“data.table”)
2. utils::contrib.url(repos, “source”)
   Execution halted

when i remove install.packages(“data.table”) from the code, i get the same error but for a different packages.

I am expecting to be able to knit my project in pdf, html or word format without any errors.