covr :: package_coverage报告“没有这样的文件或目录”

Question

我试图查看sumbose/iRF的代码覆盖率，所以我做了一个git clone，在目录内部启动了R会话，然后

> library(covr)
> package_coverage()
Error in file(con, "r") : cannot open the connection
In addition: Warning messages:
1: In utils::install.packages(repos = NULL, lib = tmp_lib, pkg$path,  :
  installation of package ‘/private/tmp/iRF’ had non-zero exit status
2: In file(con, "r") :
  cannot open file '/private/var/folders/ny/f06ns0d568bgf6s559z8j_9m0000gn/T/RtmpAr8dLV/R_LIBS168866d1ef32f/iRF/R/iRF': No such file or directory

但是，R CMD INSTALL iRF和install.packages('iRF', repos = NULL)都按预期安装了程序包。