Question

当你点击（文件＆gt;新文件＆gt;闪亮的网络应用程序）时rstudio自动生成的闪亮应用程序不起作用，在Chrome和RStudio崩溃时变为灰色屏幕。

当我尝试添加ggplot图表的输出时，当我自己的应用程序崩溃时，我注意到了这一点。这个模板有一个基本的直方图，我猜问题是关于情节。

我只在这里复制和粘贴模板

library(shiny)

# Define UI for application that draws a histogram
ui <- fluidPage(

# Application title
titlePanel("Old Faithful Geyser Data"),

# Sidebar with a slider input for number of bins 
sidebarLayout(
   sidebarPanel(
      sliderInput("bins",
                  "Number of bins:",
                  min = 1,
                  max = 50,
                  value = 30)
   ),

   # Show a plot of the generated distribution
   mainPanel(
      plotOutput("distPlot")
   ) ) )
# Define server logic required to draw a histogram
server <- function(input, output) {

 output$distPlot <- renderPlot({
    # generate bins based on input$bins from ui.R
    x    <- faithful[, 2] 
    bins <- seq(min(x), max(x), length.out = input$bins + 1)

    # draw the histogram with the specified number of bins
    hist(x, breaks = bins, col = 'darkgray', border = 'white')
 }) } 
# Run the application 
shinyApp(ui = ui, server = server)

我的会话信息

sessionInfo() 
R version 3.4.0 (2017-04-21) 
Platform: x86_64-w64-mingw32/x64 (64-bit) 
Running under: Windows 7 x64 (build 7601) Service Pack 1

Matrix products: default

locale: 
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C                           
[5] LC_TIME=English_United States.1252    

attached base packages: 
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):  
[1] colorspace_1.3-1   scales_0.4.1      compiler_3.4.0   lazyeval_0.2.0   plyr_1.8.4    
[6] tools_3.4.0        gtable_0.2.0      tibble_1.3.3     Rcpp_0.12.11     ggplot2_2.2.1.9000
[11] grid_3.4.0         rlang_0.1.1       munsell_0.4.3  

packageVersion("shiny") # ‘1.0.3’

Answer 1

此问题已在此处报告并解决。 https://github.com/rstudio/shiny/issues/1726

简而言之，当R更新为3.4

时，需要更新包

 update.packages(ask = FALSE, checkBuilt = TRUE)

RStudio闪亮的应用程序崩溃

1 个答案: