创建Rmarkdown的时候需要更新一些包,请看看这更新不了是因为什么?

创建Rmarkdown文件时跳出了需要更新包的提示,点击确定以后更新结果失败。
跳出的提示(选了Yes):Install Required Packages

Creating R Markdown documents requires updated
versions of the flllowing packages: base64enc, evaluate,
highr, htmltools, jquerylib, jsonlite, knitr, markdown,
mime, rmarkdown, stringi, stringr, tinytex, xfun, yaml.
Do you want to install these packages now?
Yes
No

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按需要更新好相关包,做Rmarkdown文件。