Embedding multiple shiny apps in single Rmarkdown file using "shinyAppDir" function - r

Question

I have created several shiny apps to embed in single Rmarkdown file.
I am using Amazon ec2 Ubuntu machine for hosting my shiny apps and rstudio. All the working apps are at /srv/shiny-server.
To do this, I create another folder for Rmarkdown single file in /srv/shiny-server. The individual chunks are running but Run Document commands is giving an error:
ERROR: cannot open the connection
I am using following R markdown code:
### App 1 goes here
```{r, echo=FALSE}
library(shiny)
shinyAppDir(
"/srv/shiny-server/App1",
options=list(
width="100%", height=550
)
)
```
### App 2 goes here
```{r, echo=FALSE}
library(shiny)
shinyAppDir(
"/srv/shiny-server/App2",
options=list(
width="100%", height=550
)
)
```
## Likewise ...

Answer 1

Not sure this will answer your question, but I encountered this problem and here's what I found. I'm running a shiny server on an Ubuntu EC2 instance. Also, I didn't create shiny apps the same way you did, instead I embedded interactive visualizations in R Markdown using ggvis and the shiny runtime like so:
---
date: "`r format(Sys.time(), '%d %B, %Y')`"
output:
html_document:
theme: readable
toc: yes
toc_depth: 3
runtime: shiny
---
Here are the two things that caused my problem:
Wrong paths to sourced code or data. You can provide absolute paths or paths relative to where your Rmd is located.
Using cache = TRUE in code chunks.
You can't cache things and when you do it causes the "cannot open the connection" error.