talgalili/installr

system("ipconfig", intern = TRUE) fails when installr::updater

Closed this issue · 14 comments

ceschi commented

Describe the bug
I wanted to update R from my current 4.0.3 to 4.0.4 with installr::updater, but right after the usual pop-up windows I get the following error:

> installr::updater()
Installing the newest version of R,
 please wait for the installer file to be download and executed.
 Be sure to click 'next' as needed...
Error in system("ipconfig", intern = TRUE) : 'ipconfig' not found

Oddly enough, running system('ipconfig') or system("ipconfig", intern = F) does work and returns a numeric value.

Any hint?

To Reproduce
Simple run of installr::updater, under latest version of Win10, RStudio and R x64 (with and without admin)

Expected behavior
Updating to R 4.0.4

talgalili commented
ceschi commented
talgalili commented
ceschi commented

Well, I still haven't figured out the source of my own problem, but I guess it is less general than I thought initially. If you do not have any pointers I will just go for an old fashioned update.

Thanks!

burgerga commented

I kind of like this approach from https://stackoverflow.com/a/34970085/1439843:

curl::has_internet
## function(){
##    !is.null(nslookup("google.com", error = FALSE))
## }

that way, problems with system will be avoided.
What numeric value is returned though, when you do system('ipconfig', intern = F)

ceschi commented

system('ipconfig', intern = F) returns 127, while curl::has_internet() returns TRUE, as I am connected with a functioning internet connection.
In most cases, I am connected from my workplace, although other Win machines there do upgrade without any problem.

burgerga commented

It should return a 0, 127 means there was a problem. Weird, what is the output from

system('ipconfig', intern = T)

?

ceschi commented

As per the OP, running system('ipconfig', intern = T) gives Error in system("ipconfig", intern = T) : 'ipconfig' not found

burgerga commented

Ah yes, sorry, does shell("ipconfig") work? And running "ipconfig" in a cmd.exe?

ceschi commented

ouch, neither is working, maybe I need to checks my env paths?

burgerga commented
ceschi commented

That's precisely what I found after finding that ipconfig was not working, but my PATH looks fine, the .exe file is in the proper folder.

FWIW, ipconfig works in the Win10 PowerShell, oddly enough.

burgerga commented

Yeah, that is weird... However, I'm closing the issue, since it seems it is a problem unique to your Windows installation ;)

ceschi commented

Yep, thank you for your suggestions in the meantime tho!

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