Argthtjtr

I have successfully hosted a shiny app on an Ubuntu server (on AWS) inside the directory /home/rstudio/nlp so the end file is /home/rstudio/nlp/app.R and I am able to access it on the internet on the following url:

http://XX.XXXX.XX.XX:3838/nlp

(sorry I have masked the IP address)

but strangely if the same app.R file is placed inside a subdirectory e.g. /home/rstudio/nlp/shiny/app.R, it does not get picked up on the url
http://XX.XXXX.XX.XX:3838/nlp/shiny

It throws the error:

Not Found

I have tried the following:

1. renaming my subdirectory: no success.


2. accessing urls to other preloaded shiny apps, e.g. http://XX.XXXX.30.42:3838/ShinyApps/sample-apps/hello : working.


3. moving my app.R inside the path /home/rstudio/ShinyApps/sample-apps: runs successfully


4. trying to find if any directory names are configured in the shiny config files at /opt/shiny-server/config : none found.


5. reading this FAQ article on Rstudio support: no help

Why is the app.R not getting accessed on my subdirectory under nlp directory?

I am certain it is not an app initialization problem as the error, in that case, is different. I tried by adding a deliberate bug and this was the error message (of course when the app is placed in some other directory)

An error has occurred The application failed to start. The application
exited during initialization.

But I did not get the same error when the app.R is placed inside nlp/shiny directory. The Not found error indicates the subdirectory is not accessible or is incorrect.

Any help will be appreciated.