Error in value[[3L]](cond) : could not find function "%>%"

MayaGans · November 12, 2020, 2:15pm

Hi everyone,

My app works locally (famous last word) but when I deploy I get the error:

Error in value[[3L]](cond) : could not find function "%>%"
Calls: local ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted

I did start off by looking at other posts with the same error message but for different packages, and I've tried to debug this but am totally at a loss. I've structured my shiny app as a {golem} package and used usethis::use_pipe() and the log is pretty useless to help debug too:

2020-11-12T02:53:32.639238+00:00 shinyapps[3212711]: R version: 4.0.3
2020-11-12T02:53:32.639246+00:00 shinyapps[3212711]: shiny version: 1.5.0
2020-11-12T02:53:32.639280+00:00 shinyapps[3212711]: httpuv version: 1.5.4
2020-11-12T02:53:32.639288+00:00 shinyapps[3212711]: rmarkdown version: 2.5
2020-11-12T02:53:32.639358+00:00 shinyapps[3212711]: htmltools version: 0.5.0
2020-11-12T02:53:32.639521+00:00 shinyapps[3212711]: Using pandoc: /opt/connect/ext/pandoc2
2020-11-12T02:53:32.808128+00:00 shinyapps[3212711]: Using jsonlite for JSON processing
2020-11-12T02:53:32.811352+00:00 shinyapps[3212711]: 
2020-11-12T02:53:32.811353+00:00 shinyapps[3212711]: Starting R with process ID: '45'
2020-11-12T02:53:32.639292+00:00 shinyapps[3212711]: knitr version: 1.30
2020-11-12T02:53:32.639318+00:00 shinyapps[3212711]: jsonlite version: 1.7.1
2020-11-12T02:53:32.639326+00:00 shinyapps[3212711]: RJSONIO version: (none)
2020-11-12T02:53:33.150625+00:00 shinyapps[3212711]: Error in value[[3L]](cond) : could not find function "%>%"
2020-11-12T02:53:33.150627+00:00 shinyapps[3212711]: Calls: local ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
2020-11-12T02:53:33.150628+00:00 shinyapps[3212711]: Execution halted

The repo I am trying to deploy is here: https://github.com/Biogen-Inc/tidyCDISC, I've tried to create a reprex of a golem package with a pipe but of course that deployed just fine any help or leads to explore this further would be incredibly helpful!

> version
               _                           
platform       x86_64-apple-darwin17.0     
arch           x86_64                      
os             darwin17.0                  
system         x86_64, darwin17.0          
status                                     
major          4                           
minor          0.3                         
year           2020                        
month          10                          
day            10                          
svn rev        79318                       
language       R                           
version.string R version 4.0.3 (2020-10-10)
nickname       Bunny-Wunnies Freak Out

nirgrahamuk · November 12, 2020, 3:12pm

you app would need some mention of either magrittr or dplyr or tidyverse via library() or require() functions both so that rsconnect will understand you need that package available on the target system, but also to make it available without namespace declarations in your app code.

MayaGans · November 12, 2020, 3:36pm

Thanks for your response, I tried explicitly adding library(magrittr) to the app.R file but this didn't work which confirms my mental model that using the golem infrastructure where we use pkgload::load_all should be loading that library already: https://github.com/Biogen-Inc/tidyCDISC/blob/master/app.R

I forgot to note that this app DID deploy just fine prior to updating my version of R (3.6.3) curious!

nirgrahamuk · November 12, 2020, 4:00pm

so your app is a package itself ?
perhaps it needs to have a library declaration to load itself so that rsconnect / shinyapps.io installs it as intended ?

nirgrahamuk · November 12, 2020, 4:01pm

Did it not work in exactly the same way as not having it didnt work, or in a new way?

MayaGans · November 12, 2020, 4:32pm

Yup, same error, same log - if you're familiar with golem it's a framework to structure your shiny app as a package (which makes debugging this a little more complicated) thank you so much for your help and looking into this!

nirgrahamuk · November 12, 2020, 4:51pm

I recommend you look at this issue, and perhaps ifyour issue is different raise your own.

github.com/ThinkR-open/golem

golem is incompatible with shinyapps.io. Please update frontpage Readme to reflect this incompatibility.

opened 05:34PM - 28 Oct 20 UTC

closed 06:46PM - 28 Oct 20 UTC

yogat3ch

Hi @VincentGuyader & @ColinFay , We've opened a number of issues regarding depl…oying a `golem` to shinyapps.io. We haven't received much guidance on any of those issues. After running into error after error attempting to deploy the app we've spent a great deal of time converting to the `golem` framework, I attempted to deploy just the basic `golem` that is automatically created using the File > New Project > golem method in RStudio. I used the Blue button method on app.R to deploy the file. It returns the following error (which we kept encountering with the main app): ``` Error in value[[3L]](cond) : Can't call `runApp()` from within `runApp()`. If your application code contains `runApp()`, please remove it. ``` It seems that the `golem` framework is fundamentally incompatible with shinyapps.io. The Readme should reflect this. I request that you please update the front page readme to save other shiny app developers the frustration of attempting to use this framework if they're planning to deploy to shinyapps.io, at least until the time that it becomes compatible with shinyapps.io (if it does). At present, the documentation is misleading.

riccardoporreca · November 20, 2020, 2:22pm

The issue is due to a different autoload behavior with Shiny 1.5.x.
See https://github.com/ThinkR-open/golem/issues/558#issuecomment-731175740