Unable to deploy my shiny application to shinyapps.io

Hi,
I'm trying to publish my shiny application to shinyapps.io from my RStudio but getting error messages. The application is running fine in local environment. The errors are as given below -


checking for pkg-config... /usr/bin/pkg-config
checking if pkg-config knows NLopt... no
checking for cmake... no

------------------ CMAKE NOT FOUND --------------------

CMake was not found on the PATH. Please install CMake:

  • sudo yum install cmake (Fedora/CentOS; inside a terminal)
  • sudo apt install cmake (Debian/Ubuntu; inside a terminal).
  • sudo pacman -S cmake (Arch Linux; inside a terminal).
  • sudo brew install cmake (MacOS; inside a terminal with Homebrew)
  • sudo port install cmake (MacOS; inside a terminal with MacPorts)

Alternatively install CMake from:


Warning: unknown option ‘--vanilla’

  • installing to library ‘/opt/R/4.1.3/lib/R/library’
  • installing source package ‘nloptr’ ...
    ** package ‘nloptr’ successfully unpacked and MD5 sums checked
    ** using staged installation
    ERROR: configuration failed for package ‘nloptr’
  • removing ‘/opt/R/4.1.3/lib/R/library/nloptr’
    GET /v1/tasks/?filter=account_id:1384060&filter=parent_id:1153440027&count=100&offset=0 850ms
    ################################# End Task Log #################################
    ----- Deployment error -----
    Error: Unhandled Exception: Child Task 1153440027 failed: Error building image: Error building nloptr (2.0.1). Build exited with non-zero status: 1

----- Error stack trace -----
4: rsconnect::deployApp(appDir = "D:/Personal/Coursera/Data Science Specialization/Developing Data Products/shiny_assignment",
appFileManifest = "C:/Users/Umeshm/AppData/Local/Temp/9463-3f50-a342-34df",
account = "moolchandani", server = "shinyapps.io", appName = "shiny_assignment",
...
3: client$waitForTask(taskId, quiet)
2: stop(status$error, call. = FALSE)
1: (function (e)
{
cat("----- Deployment error -----\n")
...
Error: Unhandled Exception: Child Task 1153440027 failed: Error building image: Error building nloptr (2.0.1). Build exited with non-zero status: 1
Execution halted


Please help me in resolving this issue.

Thanks.

Umesh Moolchandani