Error in file.path when running Shiny apps in showcase mode

[drzamich]

When I try to run any Shiny app in showcase - for example

shiny::runExample("01_hello")

I get an error

Warning: Error in file.path: cannot coerce type 'closure' to vector of type 'character'
  [No stack trace available]

My setup:

• Shiny 1.4.0.2
• RStudio 1.3.959
• macOS 10.14.6

Any ideas how to debug?

[nirgrahamuk]

im afraid this is a bug in shiny

Shiny file.path error

I've run into a problem with a fresh shiny install. Launching an app opens a browser window and returns an error from file.path. No information is in the logs and there is no traceback to show what caller is causing the problem. library(shiny) runExample('01_hello') Listening on http://127.0.0.1:7009 Warning: Error in file.path: cannot coerce type 'closure' to vector of type 'character' [No stack trace available] The server is a RHEL 8.2 box with Shiny 1.4.0.2 and the error appears with both R 4.0.1 and R 3.6.3. My guess is that something on the system is misconfigured but I can't figure out what with so little information returned. Any thoughts?

[drzamich]

Thanks for the link. I noticed that the fix has already been merged but it's not yet on CRAN. So I installed Shiny based on the GitHub code with

remotes::install_github("rstudio/shiny")

and it works!