Error in RShiny ui.r argument missing

Question

An attempt to create a ui.r file to build a logistic regression with the following functions:

selection of inputs (y-variable: breakdown, x-variables: temperature, humidity, hours) and a range range slider.

I got the following error: Error in tag("div", list(...)) : argument is missing, with no default

 require(shiny) shinyUI(pageWithSidebar( headerPanel("Home Automation Data Model - TV"), sidebarPanel( wellPanel( selectInput( inputId = "x_var", label = "X variable", choices = c( "Temperature (Celcius)" = "Temp", "Humidity (Percentage)" = "Hum", "Hours" = "Hrs" ), selected = "Temperature" ), uiOutput("x_range_slider") ), wellPanel( selectInput( inputId = "y_var", label = "Y variable", choices = c("Breakdowns (Yes/No)" = "y"), ), uiOutput("y_range_slider") ), wellPanel( p(strong("Model predictions")), checkboxInput(inputId = "mod_logistic", label = "Logistic (dot-dash)"), conditionalPanel( condition = "input.mod_loess == true", sliderInput( inputId = "mod_loess_span", label = "Smoothing (alpha)", min = 0.15, max = 1, step = 0.05, value = 0.75 ) ) ) ), mainPanel( plotOutput(outputId = "main_plot"), conditionalPanel( "input.mod_logistic == true", p(strong("Logit model")), verbatimTextOutput(outputId = "mod_logistic_text") ), ) )) 

Error in tag ("div", list (...)): missing argument, no default

Answer 1

Delete the last comma in the ui.R file. It expects an argument after the decimal point.