Unable to re-publish Shiny app to ShinyApps.io

Question

I have had a working and published shiny app for a couple of years now. I made some edits to the app (and also updated to the latest R and Rstudio) and it still runs perfectly in the Rstudio environment but I am unable to re-publish it externally. When attempting to do so I get the following error:

Error: Unhandled Exception: Child Task 1352279461 failed: Error building image: Error building MASS (7.3-60). R version 4.3.2 currently unavailable

Full deployment log attempt below. I think upgrading to R version 4.3.2 may have actually hurt me here?

── Preparing for deployment ────────────────────────────────────────────────────
✔ Re-deploying "binomial-probability" to "server: shinyapps.io / username: amorris412"
ℹ Looking up application with id "10410243"...
✔ Found application <https://amorris412.shinyapps.io/binomial-probability/>
ℹ Bundling 2 files: app.R and temp_plot.png
ℹ Capturing R dependencies with renv
✔ Found 57 dependencies
✔ Created 42,078b bundle
ℹ Uploading bundle...
✔ Uploaded bundle with id 7886767
── Deploying to server ─────────────────────────────────────────────────────────
Waiting for task: 1352279452
  building: Processing bundle: 7886767
  building: Building image: 9443497
  building: Building package: MASS
## Begin Task Log ##############################################################
## End Task Log ################################################################
Error: Unhandled Exception: Child Task 1352279461 failed: Error building image: Error building MASS (7.3-60). R version 4.3.2 currently unavailable
Execution halted

The app runs fine in Rstudio as you can see in the background of the screenshot. I am simply trying to republish

Publish to Server

Answer 1

I don't know if this is an option for you, but sometimes it is helpful to completely delete the shiny app remotely on shinyapps.io. Maybe you can also get away with renaming it remotely, so you have a backup.

Then also remove all local files associated with the previous deployment.

Then redeploy it as a fresh new app.

Answer 2

I'm glad someone else is having this problem. I just switched to Eye Holes and couldn't deploy an app today, so I think that must be the problem. I'm using a Mac, and apparently RSwitch can use older versions for specific instances. But I can't make heads or tales of it. I'm thinking about reverting to 4.3.1 til Posit gets the kinks out. It looks like this problem of deployment with new versions has happened a few times in the past.