Hello, Right now installing r-ggplot2 fails because dependency r-scales can't be found on CRAN mirrors:
ERROR: download failed "http://cran.../src/contrib/scales_0.2.5.tar.gz"; 404 "Not Found" Current version of r-scales is "0.3.0". 'guix download' output: starting download of `/tmp/guix-file.DyKVF9' from `http://cran.rstudio.com/src/contrib/scales_0.3.0.tar.gz'... scales_0.3.0.tar.gz 56KiB 124KiB/s 00:00:00 [####################] 100.0% /gnu/store/gjk0cdfyi83gygcka0ai1cvmqvcv10ab-scales_0.3.0.tar.gz 1kkgpqzb0a6lnpblhcprr4qzyfk5lhicdv4639xs5cq16n7bkqgl
