Error while running Shiny app

[HKr]

While running the Shiny App ,I am getting the below error ,
Warning in if (!is.na(attribValue)) { :
the condition has length > 1 and only the first element will be used
Warning: Error in writeImpl: Text to be written must be a length-one character vector
[No stack trace available]
Any fix for this?

[andresrcs]

To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at this resources, to see how to create one for a shiny app

Chapter 5 Workflow | Mastering Shiny

Shiny debugging and reprex guide

Shiny issues can be challenging to resolve relative to other problems with your code or statistical methods. Shiny apps are often large, complex projects with interacting files. When seeking help from others it is considered polite to: First, do your best to work through RStudio's debugging tools to diagnose your issue on your own. Often those shiny logs and tracebacks are useful to others trying to help out. Second, strive to minimize the effort required to replicate your issue. You can do this with a reproducible example ("reprex"). Shiny Debugging Errors in Shiny code can be difficult to track down. If you don't know where your problem is coming from, you can track it down with some o…

[nirgrahamuk]

This is not shiny related per se. consider this pure R script.

(a <- 8)
(b <- c(4,8))

if(a > 4){
  print("a>4")
} else {
  print("!a >4")
}

if(b > 4){
  print("b>4")
} else {
  print("!b >4")
}

ifelse(b>4,"b>4","!b>4")

[HKr]

I can't display the SliderInput after running the app. This is causing an error.

 output$ReactTimer <- renderUI({
    req(input$Match)
    sliderInput("Timer","Khel Kabaddi:",min = 1, value = max(data[data$MatchID == substr(input$Match, nchar(input$Match)-5,nchar(input$Match)),"RaidSequence"])*2,step=1,
                max = max(data[data$Period %in% c(1,2) & data$MatchID == substr(input$Match, nchar(input$Match)-5,nchar(input$Match)),"RaidSequence"])*2,
                animate = animationOptions(interval = 3000, loop = TRUE,
                                           playButton = icon('play', "fa-2x"),
                                           pauseButton = icon('pause', "fa-2x")))})

[nirgrahamuk]

You should mention what the error is...
We can't run your code to see for ourselves. That in itself will limit our ability to give you help.

[HKr]

In my slider Input mentioned above, "value"&"max" have more conditions.
If I run my app in place of slider input it shows "Text to be written must be a length-one character vector"
error
Should I re write the conditions in the code of SliderInput?

[nirgrahamuk]

@HKr

Should I re write the conditions in the code of SliderInput?

I think thats probably the right thing to do.
Also learning how to reprex will benefit you in the long term and is worth doing also.