我有以下代码，
library(tigris)
options(tigris_use_cache = FALSE)
geoc <- counties(cb=TRUE)
我收到以下错误：
Error in ogrInfo(dsn = dsn, layer = layer, encoding = encoding, use_iconv = use_iconv, :
Cannot open data source
In addition: Warning message:
In unzip(file_loc, exdir = tmp) : error 1 in extracting from zip file
对此我将不胜感激！