title: object 'output' not found
body: <p>I created a Shinydashboard and want to produce an outputTable, but i get the error object "output" not found. I have absolutely no clue why this happens. In the server function i have an "output", and the data stream should also work. Can you help me? Here is the code:</p>
  
  <pre><code>### Notwendige Pakete laden.
  
  rm(list = ls())
  
  if (!require('dplyr')) install.packages('dplyr'); library('dplyr')
  if (!require('shiny')) install.packages('shiny'); library('shiny')
  if (!require('shinydashboard')) install.packages('shinydashboard'); library('shinydashboard')
  if (!require('car')) install.packages('car'); library('car')
  if (!require('Hmisc')) install.packages('Hmisc'); library('Hmisc')
  if (!require('ggplot2')) install.packages('ggplot2'); library('ggplot2')
  if (!require('foreign')) install.packages('foreign'); library('foreign')
  if (!require('tidyr')) install.packages('tidyr'); library('tidyr')
  if (!require('highcharter')) install.packages('highcharter'); library('highcharter')
  if (!require('DT')) install.packages('DT'); library('DT')
  
  data &lt;- readRDS("C:/Users/langma/Desktop/Mini/MP_MINI_Aftersales_Export.rds")
  datalabels &lt;- readRDS("C:/Users/langma/Desktop/Mini/var.labels.rds")
  
  ## app.R ##
  
  
  ui &lt;- dashboardPage(
      dashboardHeader(title = "Mini Dashboard"),
      dashboardSidebar(includeCSS("www/style.css"),
          sidebarMenu(
              h3("Filtereinstellungen"),
              selectizeInput("country", "Land", choices = data$v_2, selected = data$v_2, multiple = TRUE),
              selectizeInput("modell", "Automodell", choices = data$v_3, selected = data$v_3, multiple = TRUE),
              selectizeInput("sex", "Geschlecht", choices = data$v_2, selected = data$v_2, multiple = TRUE),
              selectizeInput("money", "Finanzierung", choices = data$v_18, selected = data$v_18, multiple = TRUE)
          )
      ),
      dashboardBody(
          fluidRow(
              tabBox(width = 6,
                  title = "Touchpoints",
                  # The id lets us use input$tabset1 on the server to find the current tab
                  id = "tabset1", height = "500px",
                  tabPanel("Tab1", tableOutput("anzahl")),
                  tabPanel("Tab2", "Kaufort"),
                  tabPanel("Tab3", "Privatkauf Anbahnung")
              ),
              tabBox(width = 6,
                     title = "Automotive", 
                     # The id lets us use input$tabset1 on the server to find the current tab
                     id = "tabset2", height = "500px",
                     tabPanel("Tab4", "Neu-/Gebrauchtwagen"),
                     tabPanel("Tab5", "Kaufort"),
                     tabPanel("Tab6", "Privatkauf Anbahnung")
              )
      )
  ))
  
  server &lt;- function(input, output, session) { }
          df &lt;- reactive({
              filtereddata &lt;- data %&gt;%
                  filter(v_2 %in% input$country)
          })
  
          output$anzahl &lt;- renderTable({
              df()
          })
  
  
  shinyApp(ui, server)
  </code></pre>