a error occur in remoteDriver function of RSelenium - rselenium

Question

I want to scrape data on dynamic web by the following code:
> URL<- "http://www.cbooo.cn/realtime"
> library(bitops)
> library(RCurl)
> library(XML)
> library(RSelenium)
> library(magrittr)
> checkForServer()
Warning message:
checkForServer is deprecated.
Users in future can find the function in file.path(find.package("RSelenium"), "example/serverUtils").
The sourcing/starting of a Selenium Server is a users responsiblity.
Options include manually starting a server see vignette("RSelenium-basics", package = "RSelenium")
and running a docker container see vignette("RSelenium-docker", package = "RSelenium")
> startServer()
$stop
function ()
{
tools::pskill(selPID)
}
<environment: 0x10991af0>
$getPID
function ()
{
return(selPID)
}
<environment: 0x10991af0>
Warning message:
startServer is deprecated.
Users in future can find the function in file.path(find.package("RSelenium"), "example/serverUtils").
The sourcing/starting of a Selenium Server is a users responsiblity.
Options include manually starting a server see vignette("RSelenium-basics", package = "RSelenium")
and running a docker container see vignette("RSelenium-docker", package = "RSelenium")
> remDrv <- remoteDriver()
> remDrv$browserName="Internet Explorer"
> remDrv$open()
[1] "Connecting to remote server"
Selenium message: The best matching driver provider org.openqa.selenium.ie.InternetExplorerDriver can't create a new driver instance for Capabilities [{nativeEvents=true, browserName=Internet Explorer, javascriptEnabled=true, version=, platform=ANY}]
Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
System info: host: 'DESKTOP-J0D980N', ip: '10.36.17.76', os.name: 'Windows 10', os.arch: 'x86', os.version: '10.0', java.version: '1.8.0_77'
Driver info: driver.version: unknown
Error: Summary: UnknownError
Detail: An unknown server-side error occurred while processing the command.
class: org.openqa.selenium.WebDriverException
Further Details: run errorDetails method
There are the following questions which I can't solve:
1 checkForServer,startServer are deprecated.
2 connecting to remote server always fials,I don't konw how to set some argurment in this funciotn and what should be done
I hope to get a anwser as soon as possible ,thanks.

Answer 1

The author of RSelenium provides a solution as following (https://github.com/ropensci/RSelenium/issues/81):
From Firefox 48 on-wards the gecko driver/ marionette will be needed to run Firefox with Selenium.
If you have Firefox 48 you can run the gecko driver as follows:
Refer to the guidelines
https: //developer.mozilla.org/en-US/docs/Mozilla/QA/Marionette/WebDriver
Download the relevant gecko driver from
https: //github.com/mozilla/geckodriver/releases
Add it to your PATH or refer to the location when starting binary (see below)
# get beta selenium standalone
RSelenium::checkForServer(beta = TRUE)
# assume gecko driver is not in our path (assume windows and we downloaded to docs folder)
# if the driver is in your PATH the javaargs call is not needed
selServ <- RSelenium::startServer(javaargs = c("- Dwebdriver.gecko.driver=\"C:/Users/john/Documents/geckodriver.exe\""))
remDr <- remoteDriver(extraCapabilities = list(marionette = TRUE))
remDr$open()
....
....
remDr$close()
selServ$stop()

Answer 2

Well to produce a viable working solution I would use the old version of RSelenium and everything with this code.
if (!require("XML")) {
install.packages("XML",repos= 'https://cloud.r-project.org')
library("XML")
}
#XML is a dependency
if (!require("RSelenium")) {
install.packages("https://cran.r-project.org/src/contrib/Archive/RSelenium/RSelenium_1.3.5.tar.gz", repos=NULL, type="source", dependencies = TRUE)
library("RSelenium")
}
download.file('http://selenium-release.storage.googleapis.com/2.53/selenium-server-standalone-2.53.1.jar', destfile = "~/Documents/R/library/RSelenium/bin/selenium-server-standalone.jar")
#start server
system('java -jar "~/Documents/R/library/RSelenium/bin/selenium-server-standalone.jar"')
library(RSelenium)
checkForServer()
startServer()
That is not an optimal solution. But a working solution.