Webpage fails to load

[Samiam789]

When I run the app the webpage loads but continually displays the "loading" animation. I can click through the various tabs but can't upload data. I'm running R on Fedora Linux 39 (workstation edition). I've tried it using Firefox and Edge (and also through RStudio). Any help would be much appreciated!

[patriciamar]

Please provide more information:
Are you running ShinyItemAnalysis locally in your R session? If running locally, please provide your sessionInfo(). You should also be able to see the Error messages it gives you (in RStudio, this will be in the Background Jobs tab).

[patriciamar]

Also, there were some issues with the Matrix library lately, try to update that library.
Perhaps the error message it was giving you was related to that library?

[Samiam789]

Here is the output from Background Jobs in rstudio... I couldn't see any error messages (but I am very new to R).

Loading required package: shiny

Listening on http://127.0.0.1:3318
Loading required package: DT

Attaching package: ‘DT’

The following objects are masked from ‘package:shiny’:

dataTableOutput, renderDataTable

Loading required package: plotly
Loading required package: ggplot2

Attaching package: ‘plotly’

The following object is masked from ‘package:ggplot2’:

last_plot

The following object is masked from ‘package:stats’:

filter

The following object is masked from ‘package:graphics’:

layout

Loading required package: shinyBS
Loading required package: shinydashboard

Attaching package: ‘shinydashboard’

The following object is masked from ‘package:graphics’:

box

Loading required package: shinyjs

Attaching package: ‘shinyjs’

The following object is masked from ‘package:shiny’:

runExample

The following objects are masked from ‘package:methods’:

removeClass, show

Loading required package: deltaPlotR
Loading required package: MASS

Attaching package: ‘MASS’

The following object is masked from ‘package:plotly’:

select

Loading required package: data.table
Loading required package: difNLR
Loading required package: difR
Loading required package: ggdendro
Loading required package: grid
Loading required package: gridExtra
Loading required package: knitr
Loading required package: latticeExtra
Loading required package: lattice

Attaching package: ‘latticeExtra’

The following object is masked from ‘package:ggplot2’:

layer

Loading required package: ltm
Loading required package: msm
Loading required package: polycor
Loading required package: mirt
Loading required package: stats4

Attaching package: ‘mirt’

The following object is masked from ‘package:ltm’:

Science

Loading required package: lme4
Loading required package: Matrix

Attaching package: ‘lme4’

The following object is masked from ‘package:mirt’:

fixef

Loading required package: nnet
Loading required package: purrr

Attaching package: ‘purrr’

The following object is masked from ‘package:data.table’:

transpose

Loading required package: psych

Attaching package: ‘psych’

The following object is masked from ‘package:ltm’:

factor.scores

The following object is masked from ‘package:polycor’:

polyserial

The following objects are masked from ‘package:ggplot2’:

%+%, alpha

Loading required package: rmarkdown
Loading required package: ShinyItemAnalysis
This is ShinyItemAnalysis version 1.5.0

• to run the interactive {shiny} app, call run_app()
• to learn more, visit ShinyItemAnalysis.org
  Loading required package: stringr
  Loading required package: tidyr

Attaching package: ‘tidyr’

The following objects are masked from ‘package:Matrix’:

expand, pack, unpack

Loading required package: dplyr

Attaching package: ‘dplyr’

The following object is masked from ‘package:gridExtra’:

combine

The following objects are masked from ‘package:data.table’:

between, first, last

The following object is masked from ‘package:MASS’:

select

The following objects are masked from ‘package:stats’:

filter, lag

The following objects are masked from ‘package:base’:

intersect, setdiff, setequal, union

Loading required package: tibble
Loading required package: VGAM
Loading required package: splines

Attaching package: ‘VGAM’

The following objects are masked from ‘package:psych’:

fisherz, logistic, logit

Loading required package: xtable

Attaching package: ‘xtable’

The following object is masked from ‘package:ggdendro’:

label

[Samiam789]

Here is the R session info...

version 4.3.2 (2023-10-31)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: Fedora Linux 39 (Workstation Edition)

Matrix products: default
BLAS/LAPACK: FlexiBLAS OPENBLAS-OPENMP; LAPACK version 3.11.0

locale:
[1] LC_CTYPE=en_AU.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_AU.UTF-8 LC_COLLATE=en_AU.UTF-8
[5] LC_MONETARY=en_AU.UTF-8 LC_MESSAGES=en_AU.UTF-8
[7] LC_PAPER=en_AU.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_AU.UTF-8 LC_IDENTIFICATION=C

time zone: Australia/Brisbane
tzcode source: system (glibc)

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

loaded via a namespace (and not attached):
[1] compiler_4.3.2 CoprManager_0.5.5

[Samiam789]

Updating the Matrix package didn't help.

[netique]

@Samiam789 Please try ShinyItemAnalysis::run_app(background = FALSE) to run the app directly in your console. Wait for, say, 5 minutes and look for any prompts, warnings, or errors in the console.

Another thing to try is to reinstall ShinyItemAnalysis with all dependencies using:

install.packages("ShinyItemAnalysis", dependencies = TRUE)

Have you tried running a simple shiny app? Maybe your machine is configured to handle HTTP or WebSocket requests in some restrictive way. Please try:

shiny::runExample("01_hello")

[Samiam789]

The simple app seemed to run ok (shiny::runExample("01_hello").

Installing the dependencies didn't make any difference.

Running it with the (background = FALSE) also didn't make any difference. After 10 min I couldn't see any warnings in the console.

The webpage opens. The loading animation starts about 10 sec after the webpage opens and then remains. I can navigate to the data tab and if I click the browse button I can navigate to and select a csv file on my hard disk. But if I press the upload button nothing happens.

Here is the console output after running the app with the (background = FALSE)...

ShinyItemAnalysis::run_app(background = FALSE)
Loading required package: shiny

Listening on http://127.0.0.1:4547
Loading required package: DT

Attaching package: ‘DT’

The following objects are masked from ‘package:shiny’:

dataTableOutput, renderDataTable

Loading required package: plotly
Loading required package: ggplot2

Attaching package: ‘plotly’

The following object is masked from ‘package:ggplot2’:

last_plot

The following object is masked from ‘package:stats’:

filter

The following object is masked from ‘package:graphics’:

layout

Loading required package: shinyBS
Loading required package: shinydashboard

Attaching package: ‘shinydashboard’

The following object is masked from ‘package:graphics’:

box

Loading required package: shinyjs
You can use shinyjs to call your own JavaScript functions:
https://deanattali.com/shinyjs/extend

Attaching package: ‘shinyjs’

The following object is masked from ‘package:shiny’:

runExample

The following objects are masked from ‘package:methods’:

removeClass, show

Loading required package: deltaPlotR
Loading required package: MASS

Attaching package: ‘MASS’

The following object is masked from ‘package:plotly’:

select

Loading required package: data.table
data.table 1.15.0 using 8 threads (see ?getDTthreads). Latest news: r-datatable.com
Loading required package: difNLR
Loading required package: difR
Loading required package: ggdendro
Loading required package: grid
Loading required package: gridExtra
Loading required package: knitr
Loading required package: latticeExtra
Loading required package: lattice

Attaching package: ‘latticeExtra’

The following object is masked from ‘package:ggplot2’:

layer

Loading required package: ltm
Loading required package: msm
Loading required package: polycor
Loading required package: mirt
Loading required package: stats4

Attaching package: ‘mirt’

The following object is masked from ‘package:ltm’:

Science

Loading required package: lme4
Loading required package: Matrix

Attaching package: ‘lme4’

The following object is masked from ‘package:mirt’:

fixef

Loading required package: nnet
Loading required package: purrr

Attaching package: ‘purrr’

The following object is masked from ‘package:data.table’:

transpose

Loading required package: psych

Attaching package: ‘psych’

The following object is masked from ‘package:ltm’:

factor.scores

The following object is masked from ‘package:polycor’:

polyserial

The following objects are masked from ‘package:ggplot2’:

%+%, alpha

Loading required package: rmarkdown
Loading required package: ShinyItemAnalysis
This is ShinyItemAnalysis version 1.5.0

• to run the interactive {shiny} app, call run_app()
• to learn more, visit ShinyItemAnalysis.org
  Loading required package: stringr
  Loading required package: tidyr

Attaching package: ‘tidyr’

The following objects are masked from ‘package:Matrix’:

expand, pack, unpack

Loading required package: dplyr

Attaching package: ‘dplyr’

The following object is masked from ‘package:gridExtra’:

combine

The following objects are masked from ‘package:data.table’:

between, first, last

The following object is masked from ‘package:MASS’:

select

The following objects are masked from ‘package:stats’:

filter, lag

The following objects are masked from ‘package:base’:

intersect, setdiff, setequal, union

Loading required package: tibble
Loading required package: VGAM
Loading required package: splines

Attaching package: ‘VGAM’

The following objects are masked from ‘package:psych’:

fisherz, logistic, logit

Loading required package: xtable

Attaching package: ‘xtable’

The following object is masked from ‘package:ggdendro’:

label