Launching from bat file: Error in AppWrapper$new : could not find function "loadMethod"

[benmarwick]

This is a great app, and I'm excited to see it get closer to IPython (there's already an IJulia!), thanks for making it available.

I have a Windows batch file that I want to launch rNotebook in firefox:

%= rNotebook launcher =%
set R_Script="C:\Program Files\R\R-3.0.2\bin\x64\RScript.exe"
pause
%R_Script%  -e "rNotebook::viewNotebook()"
pause
CD C:\Program Files\Mozilla Firefox\
start firefox.exe http://localhost:7141/
%= end =%

Here's what I get:

Loading required package: shiny

Listening on port 3900
Error in AppWrapper$new : could not find function "loadMethod"
Calls: <Anonymous> ... <Anonymous> -> startAppDir -> startApp -> startServer ->
$
Execution halted

And nothing happens.

Any tips on how to overcome this? I'm on Windows 7 with R 3.0.2

thanks,

Ben

[ramnathv]

Does it work for you if you just run rNotebook::viewNotebook() from your R console?

[benmarwick]

Thanks, yes, that line works great. That's the step I'm attempting to bypass.

[ramnathv]

It is an Rscript related issue. You will find a discussion here, along with a potential solution directly using R instead of Rscript.

[benmarwick]

Thanks for the pointer, the solution was there as you indicated. This works great as a windows batch file to open rNotebook without using R directly:

%= rNotebook launcher =%

start firefox.exe http://localhost:3838/

Rscript --no-save --no-restore -e "library(methods); shiny::runApp('C:/emacs/R/win-library/3.0/rNotebook/notebook', launch.browser=FALSE, port = 3838)"

%= end =%

thanks again!