Shiny app runs locally, error when trying to deploy it

Question

I am getting an error

The application failed to start: exited unexpectedly with code 1 Error in enforcePackage(name, curVersion) : The shiny package was not found in the library. Calls: local ... eval -> eval -> eval -> -> enforcePackage Execution halted

when I try to deploy shiny app. I found similar problem that claimed that having library(shiny) solves it, it didn't help. I also tried lib=("path/to/shiny"), no effect.

Here is my code

library(shiny)
library(DT)
library(rmarkdown)

###

ui <- fluidPage(fluidRow(column(10, div(dataTableOutput("dataTable")))))


server <- function(input, output, session) {
    
   
    data <- reactiveFileReader(100, session, 'excel.csv', read.csv)
    
    
  
    
    
    output$dataTable <- renderDT(
        data(),
        class = "display nowrap compact", 
        filter = "top", 
        
        options = list(  
            scrollX = TRUE, 
            
         
            searchCols = default_search_columns,
            search = list(regex = FALSE, caseInsensitive = FALSE, search = default_search)
        )
    )
    
}
shinyApp(ui, server)


rsconnect::deployApp('C:/path//app1.Rmd')

Any help is appreciated.

mhovd mhovd · Accepted Answer · 2021-01-26T13:13:57

The error indicates that Shiny is not installed in the environment you are deploying to.

If deploying to a server you own, first install Shiny Server, and confirm that the examples work as expected.

Then consult with the Administrator's Guide to set it up as you like it.

Shiny app runs locally, error when trying to deploy it

1 Answers