r - 一页 shinnyapp.io 应用程序中的错误

Question

我正在尝试将单个*.Rmd文件部署到 shinnyapps.io 并在界面中收到以下错误：

An error has occurred The application failed to start (exited with code 1).

Error in enforcePackage(name, curVersion) :    The rmarkdown package was not found in the library. Calls: local ... eval -> eval ->
eval -> <Anonymous> -> enforcePackage Execution halted

应用程序日志如下所示：

2019-03-09T21:34:42.167089+00:00 shinyapps[778397]: Server version:
1.7.0-11 2019-03-09T21:34:42.167117+00:00 shinyapps[778397]: LANG: en_GB.UTF-8 2019-03-09T21:34:42.167118+00:00 shinyapps[778397]: R
version: 3.5.2 2019-03-09T21:34:42.167120+00:00 shinyapps[778397]:
httpuv version: 1.4.5.1 2019-03-09T21:34:42.167119+00:00
shinyapps[778397]: shiny version: 1.2.0
2019-03-09T21:34:42.167126+00:00 shinyapps[778397]: knitr version: NA
2019-03-09T21:34:42.167125+00:00 shinyapps[778397]: rmarkdown version:
NA 2019-03-09T21:34:42.167466+00:00 shinyapps[778397]: Error in
enforcePackage(name, curVersion) :  2019-03-09T21:34:42.167468+00:00
shinyapps[778397]:   The rmarkdown package was not found in the
library. 2019-03-09T21:34:42.167469+00:00 shinyapps[778397]: Calls:
local ... eval -> eval -> eval -> <Anonymous> -> enforcePackage
2019-03-09T21:34:42.167131+00:00 shinyapps[778397]: jsonlite version:
1.6 2019-03-09T21:34:42.167137+00:00 shinyapps[778397]: RJSONIO version: NA 2019-03-09T21:34:42.167470+00:00 shinyapps[778397]:
Execution halted 2019-03-09T21:34:42.167167+00:00 shinyapps[778397]:
htmltools version: 0.3.6

这个应用程序以前可以正常工作，但现在由于某种原因rmarkdown，服务器上似乎缺少包，我不知道为什么。