I wonder if RStudio Server installation is absolutely necessary to run shiny-server.

I have installed R and shiny-server on linux to use shiny .
However, the following error message is displayed.

"**An error has occurred**

The application failed to start.

Connection attempt was absorted."

I wonder if RStudio Server installation is absolutely necessary to run shiny-server.

No, you don't need RStudio Server for running shiny server.

Crossed posted at the link below, (FAQ: Is it OK if I cross-post?)

https://stackoverflow.com/questions/71214728/i-wonder-if-rstudio-server-installation-is-absolutely-necessary-to-run-shiny-ser

I have a similar question. When I installed "shiny" and "rmarkdown" package on Linux,showed another error.
How can I solve the problem?

Package installation errors are very specific so we need the details of your problem to be able to help you.

Please open a separate topic and provide as much detail about your problem as you can. At the very least post the complete error message you get when you try to install.