RSelenium UnknownError - java.lang.IllegalStateException with Google Chrome

Question

I am running the following script based on the RSelenium Basics CRAN page:

library(RSelenium)
startServer(args = c(\"-port 4455\"), log = FALSE, invisible =          


        

Answer 1

It is worth noting that RSelenium has some annoying differences for OSX. The invisible=T/silent=T arguments will not work when you run the yourcommand.command file and the remDr$open() method, respectively. The invisible=T will actually remind you that it only works on Windows. Not a huge deal (and if someone has a workaround I'd appreciate it).

For posterity's sake here's a slight variation for OSX to replace shell.exec using a .command file instead of a .bat with the same contents as above:

yourcommand.command file contents

java -jar /path/to/selenium-server-standalone.jar -Dwebdriver.chrome.driver=/path/to/chromedriver

R script modification

library(RSelenium)
system(paste("open","/path/to/yourcommand.command"))
Sys.sleep(5)
...