[R] Problem installing/loading packages from Africa

[Michael Long]

Try upgrading R to version 3.2.5 and then try to reinstall swirl.

Michael Long

On 04/22/2016 03:41 AM, Tim Werwie wrote:
> I'm very new to R and I live in Mali, west Africa. I'm on *OS X 10.7.5*. I
> downloaded and installed *R 3.2.1*. I downloaded and installed *RStudio
> 00.99.893*.
>
> I ran through the free Microsoft data camp intro to R course, then started
> another free course through 'edX', for Data and Statistics for Life
> Sciences, using R. The first prompt in the course is to
> install.packages("swirl"). Copied below are the various error messages I
> get when trying to install or load any package.
>
> My best guess is that the problems I'm having are due to being in west
> Africa, with unreliable connections, weak connections and no CRAN Mirror
> closer than Italy or Spain (as far as I know). I checked into common
> package errors on the RStudio page, but I'm not confident enough in my
> computing to get into internet proxies and some of the other suggested
> troubleshooting.
>
> Any insight would be very helpful. See error messages below. Thanks -- Tim
>
> - When attempting to install, the print-out I get in the Console in RStudio
> is any length of: > install.packages("swirl")
>    % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                   Dload  Upload   Total   Spent    Left
> Speed
>    0     0    0     0    0     0      0      0 --:--:--  0:00:10
> --:--:--     0  0     0    0     0    0     0      0      0 --:--:--
> 0:00:10 --:--:--     0  0     0    0     0    0     0      0      0
> --:--:--  0:00:11 --:--:--     0 22  207k   22 48384    0     0   3833
> 0  0:00:55  0:00:12  0:00:43 19740 30  207k   30 64823    0     0
> 4808      0  0:00:44  0:00:13  0:00:31 19578 38  207k   38 81207    0
> 0   5638      0  0:00:37  0:00:14  0:00:23 19193 46  207k   46 97591
> 0     0   6299      0  0:00:33  0:00:15  0:00:18 20076 53  207k   53
> 111k    0     0   6966      0  0:00:30  0:00:16  0:00:14 22717 69  207k
> 69  143k    0     0   8423      0  0:00:25  0:00:17  0:00:08 20487 76
> 207k   76  159k    0     0   8821      0  0:00:24  0:00:18  0:00:06 19621
> 92  207k   92  191k    0     0  10085      0  0:00:21  0:00:19  0:00:02
> 22841100  207k  100  207k    0     0  10363      0  0:00:20  0:00:20
> --:--:-- 230100  207k  100  207k    0     0  10363      0  0:00:20  0:00:20
> --:--:-- 23922
> The downloaded binary packages are in
>
> /var/folders/yb/7z339kn56mdbwx92ydmsqswc0000gn/T//RtmpBzQ16u/downloaded_packages
>
> For other packages, ggplot2, forexample, a similar printout can run for
> hundreds and hundred of lines. So RStudio tells me that the packages are
> available to load, BUT:
>
> - when *loading* any package an error comes up saying package 'name of
> package' was built under R version 3.2.5 but info on swirl says it should
> work on any version of R above 3.0.2. I get similar errors for other
> packages (treemap, ggplot2, etc).
>
> - Or sometimes I"ll get this: Error : .onAttach failed in attachNamespace()
> for 'swirl', details: call: stri_c(..., sep = sep, collapse = collapse,
> ignore_null = TRUE)
> error: object 'C_stri_join' not found
> In addition: Warning message:
> package ‘swirl’ was built under R version 3.2.5
> Error: package or namespace load failed for ‘swirl’
>
> Any suggestions?
>
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>
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-- 
Michael Long