I cant download the swirl package for Rstudio

[mr.rof]

I am trying to download swirl and I am getting this message:

installing the source package 'swirl'

trying URL 'http://cran.stat.ucla.edu/src/contrib/swirl_2.4.5.tar.gz'
Content type 'application/x-gzip' length 108847 bytes (106 KB)

downloaded 106 KB

During startup - Warning messages:
1: Setting LC_CTYPE failed, using "C"
2: Setting LC_TIME failed, using "C"
3: Setting LC_MESSAGES failed, using "C"
4: Setting LC_MONETARY failed, using "C"
Warning in strptime(xx, f <- "%Y-%m-%d %H:%M:%OS", tz = tz) :
unknown timezone 'zone/tz/2019c.1.0/zoneinfo/America/Mexico_City'
ERROR: dependency 'RCurl' is not available for package 'swirl'

• removing '/Users/Marco_Rof/Library/R/3.3/library/swirl'

The downloaded source packages are in
'/private/var/folders/t0/6k_r73l13d5bcy_j9g055t5m0000gn/T/RtmpShxP12/downloaded_packages'
Warning message:
In install.packages("swirl") :
installation of package 'swirl' had non-zero exit status

I read that perhaps this mistake was due to not having the "RCurl" package, however, it is not available for my Rstudio version (R version 3.3.3). I am using a macbook (mojave, version 10.14.6)

Any help would be great as I am new in R.

Cheers guys!

[andresrcs]

@mr.rof

however, it is not available for my Rstudio version (R version 3.3.3).

The easiest solution would be to update R, you are using a very old version and this is going to bring you many installation problems.

[mr.rof]

fantastic!
It is now working for R (I succeed with the installation), however for my rstudio keeps on failing... I tried to update rstudio however I am running the latest version...any idea mate???

[andresrcs]

This is odd, if you have updated R, RStudio should be using the newer version, try restarting RStudio and see what R version reports on startup.

[mr.rof]

you are a master!
I restarted the R console in rstudio and now it is working!
thanks very much for your time!