我正在尝试在 tidycensus 中使用 census_api_key() 函数，但不断收到无法找到的错误，根据我收到的错误消息，tidycensus 库似乎也没有正确安装。
这是我到目前为止所做的：
> install.packages("tidycensus")
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
https://cran.rstudio.com/bin/windows/Rtools/
Installing package into ‘C:/Users/matia/OneDrive/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/tidycensus_0.11.4.zip'
Content type 'application/zip' length 2683556 bytes (2.6 MB)
downloaded 2.6 MB
> library(tidycensus)
Error: package or namespace load failed for ‘tidycensus’:
object ‘is_present’ is not exported by 'namespace:lifecycle'
In addition: Warning message:
package ‘tidycensus’ was built under R version 3.6.3
> census_api_key("my key")
Error in census_api_key("my key") :
could not find function "census_api_key"
我也尝试过安装 rgdal 库，正如其他 tidycensus 错误所建议的那样，但这对我不起作用。
非常感谢任何建议。