I have a markdown doc that includes several embedded inline shiny apps. It runs fine on my local machine, but I can't deploy to shinyapps.io. The problem seems to be related to the nloptr package, which is a dependency of piecewiseSEM and several other common packages. I don't really know what the root cause is, but it seems that nloptr requires the cmake utility, which is not found on the shinyapps server. How do I get around this?
reprex (apologies for the formatting, not sure how the escape characters work):
---
title: "shiny-reprex"
author: "Anson Call"
date: "2022/02/08"
output:
html_document:
toc: yes
toc_depth: 6
runtime: shiny
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
library(piecewiseSEM)
```{r cars}
shinyApp(
ui = fluidPage(
numericInput("n", "n", 1),
plotOutput("plot")
),
server = function(input, output, session) {
output$plot <- renderPlot( plot(head(cars, input$n)) )
}
)
I clipped this text from the console during the attempted deployment, which seems relevant:
...
using NLopt via local cmake build on x86_64
------------------ CMAKE NOT FOUND --------------------
CMake was not found on the PATH. Please install CMake:
...
and finally the error message, after the deployment fails:
/usr/bin/ld: cannot find -lnlopt
collect2: error: ld returned 1 exit status
make: *** [/opt/R/4.1.2/lib/R/share/make/shlib.mk:10: nloptr.so] Error 1
ERROR: compilation failed for package ‘nloptr’
* removing ‘/opt/R/4.1.2/lib/R/library/nloptr’
################################# End Task Log #################################
Error: Unhandled Exception: Child Task 1097159045 failed: Error building image: Build exited with non-zero status: 1
Execution halted
any advice?
