java .io.FileNotFoundException в приложении Shiny, но не в консоли

Question

Я получаю следующую ошибку, когда читаю подходящий файл с помощью cycleRtools в приложении Shiny:

Exception in thread "main" java.lang.RuntimeException: java.io.FileNotFoundException: /tmp/RtmpVVHwXw/file1810323660 (No such file or directory)
    at com.garmin.fit.csv.CSVTool.main(CSVTool.java:183)
 Caused by: java.io.FileNotFoundException: /tmp/RtmpVVHwXw/file1810323660 (No such file or directory)
   cannot open file '/tmp/RtmpVVHwXw/file1810323660_data.csv': No such file or directory
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at com.garmin.fit.csv.CSVTool.main(CSVTool.java:155)
 Warning in file(file, "rt") :
 Warning: Error in file: cannot open the connection
   183: file
   182: read.table
   181: read.csv
   180: read_fit
   179: renderPlot [/srv/connect/apps/cycleapp/server.R#18]
   177: func
   137: drawPlot
   123: <reactive:plotObj>
   107: drawReactive
    94: origRenderFunc
    93: output$distPlot
    13: runApp
    12: fn
     7: connect$retry
     6: eval
     5: eval

Вот мой код:

server.R

library(shiny)
library(cycleRtools)

# Define server logic required to draw a histogram ----
server <- function(input, output) {
  observeEvent(input$submit, {

  # Histogram of the Old Faithful Geyser Data ----
  # with requested number of bins
  # This expression that generates a histogram is wrapped in a call
  # to renderPlot to indicate that:
  #
  # 1. It is "reactive" and therefore should be automatically
  #    re-executed when inputs (input$bins) change
  # 2. Its output type is a plot
  output$distPlot <- renderPlot({

    intervaldata = read_fit(input$file, format=TRUE)

    plot(x = intervaldata,     # "x" is the data, for consistency with other methods.
     y = 1:3,              # Which plots should be created? see below.
     xvar = "timer.min",   # What should be plotted on the x axis?
     xlab = "Time (min)",  # x axis label.
     laps = TRUE,          # Should different laps be coloured?
     breaks = TRUE)        # Should stoppages in the ride be shown?

    })})

}

ui.R

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

  # App title ----
  titlePanel("Hello Shiny!"),

  # Sidebar layout with input and output definitions ----
  sidebarLayout(

    # Sidebar panel for inputs ----
    sidebarPanel(

      # Input: Slider for the number of bins ----
      fileInput("file", label=h3("Upload .fit file."), accept=c(".fit")),
      numericInput("FTP", label="Enter FTP", 150),
      sliderInput("sRPE", label="Relative Perceived Effort", min=0, max=10, value=5),
      actionButton("submit", label="Submit")

    ),

    # Main panel for displaying outputs ----
    mainPanel(

      # Output: Histogram ----
      plotOutput(outputId = "distPlot")

    )
  )
)

Интересно, что я не получаю сообщение об ошибке, если читаю файл через read_fit в консоли R с теми же аргументами или без них. Затем я могу построить итоговый фрейм данных, как это делается в коде сервера.

Прошло много времени с тех пор, как я что-то делал с Shiny, но похоже, что проблема с jar? Заранее благодарим за помощь!