我正在尝试连接 kusto 以获取令牌，但脚本给了我这个错误。
Loading cached token
Error in readRDS(tokenfile) error reading from connection
你能告诉我，我该怎么做吗？谢谢
This is the script
library(AzureKusto)
library(httr)
set_config( config( ssl_verifypeer = 0L ) )
token<-get_kusto_token("https://xxxxxx.xxxxx.kusto.windows.net",
tenant = "xxxxxxxxxxxxxxxxxxxxxxxx",
app="xxxxxxxxxxxxxxxxxxxxxxx"
,password="xxxxxxxxxxxxxxxxxxx",
auth_type="client_credentials")