The application failed to start.
The application exited during initialization.
su: ignoring --preserve-environment, it's mutually exclusive with --login
Green Dataworks LLC - Data Engine
processing file: index.Rmd
output file: index.knit.md
Output created: index.html
Error in shiny_prerendered_app(target_file, render_args = render_args) :
No server contexts or server.R available for /home/chris/shiny/shiny-examples/169-prerender-a/index.Rmd
Calls: <Anonymous> -> shiny_prerendered_app
Execution halted