R help - Mar 2016 - Version 3.2.3: package not available error with https

Duncan Murdoch <murdoch.duncan at gmail.com> writes:
> On 29/02/2016 6:09 AM, Loris Bennett wrote:
>> Hi,
>>
>> I recently installed version 3.2.3.  When I call
>>
>> install.packages("RCurl")
>>
>> I get a pop-up menu labelled "HTTPS CRAN Mirror" with a
shortish list of
>> mirrors.  However, I don't seem to be able to reach any of these
>> mirrors, and always get an error like the following
>>
>> Error in download.file(url, destfile = f, quiet = TRUE) :
>>    unsupported URL scheme
>> Warning: unable to access index for repository
https://cran.uni-muenster.de/src/contrib:
>>    unsupported URL scheme
>
> That error message suggests the problem is in your build, e.g. possibly an
out
> of date or missing libcurl.  What does capabilities("libcurl")
say?
FALSE

It seems that R needs libcurl 7.28.0, but my platform (Scientific Linux
6.7) only provides version 7.19.7.

Thanks for the pointer.

Loris
> Duncan Murdoch
>
>
>> Warning message:
>> package ?RCurl? is not available (for R version 3.2.3)
>>
>> If I choose the menu entry "(HTTP mirrors)" I get the list of
HTTP
>> mirrors with which I am familiar from previous versions of R.  These
>> mirrors I can reach.
>>
>> I assume I have some local, probably firewall-related problem, but can
>> someone confirm that the HTTPS mirrors do indeed work?
>>
>> Cheers,
>>
>> Loris
>>
-- 
Dr. Loris Bennett (Mr.)
ZEDAT, Freie Universit?t Berlin         Email loris.bennett at fu-berlin.de

Hi,

I'm not sure about your OS but I fixed while installing below packages on
CentOS for RCurl

yum install curl
yum install curl-devel

Thanks,
Divakar

On Mon, Feb 29, 2016 at 6:32 AM, Loris Bennett <loris.bennett at
fu-berlin.de>
wrote:
> Duncan Murdoch <murdoch.duncan at gmail.com> writes:
>
> > On 29/02/2016 6:09 AM, Loris Bennett wrote:
> >> Hi,
> >>
> >> I recently installed version 3.2.3.  When I call
> >>
> >> install.packages("RCurl")
> >>
> >> I get a pop-up menu labelled "HTTPS CRAN Mirror" with a
shortish list of
> >> mirrors.  However, I don't seem to be able to reach any of
these
> >> mirrors, and always get an error like the following
> >>
> >> Error in download.file(url, destfile = f, quiet = TRUE) :
> >>    unsupported URL scheme
> >> Warning: unable to access index for repository
> https://cran.uni-muenster.de/src/contrib:
> >>    unsupported URL scheme
> >
> > That error message suggests the problem is in your build, e.g.
possibly
> an out
> > of date or missing libcurl.  What does
capabilities("libcurl") say?
>
> FALSE
>
> It seems that R needs libcurl 7.28.0, but my platform (Scientific Linux
> 6.7) only provides version 7.19.7.
>
> Thanks for the pointer.
>
> Loris
>
> > Duncan Murdoch
> >
> >
> >> Warning message:
> >> package ?RCurl? is not available (for R version 3.2.3)
> >>
> >> If I choose the menu entry "(HTTP mirrors)" I get the
list of HTTP
> >> mirrors with which I am familiar from previous versions of R. 
These
> >> mirrors I can reach.
> >>
> >> I assume I have some local, probably firewall-related problem, but
can
> >> someone confirm that the HTTPS mirrors do indeed work?
> >>
> >> Cheers,
> >>
> >> Loris
> >>
>
> --
> Dr. Loris Bennett (Mr.)
> ZEDAT, Freie Universit?t Berlin         Email loris.bennett at fu-berlin.de
>
> ______________________________________________
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Loris Bennett <loris.bennett at fu-berlin.de> writes:
> It seems that R needs libcurl 7.28.0, but my platform (Scientific Linux
> 6.7) only provides version 7.19.7.
We got "bit" by this when upgrading to 3.2.2.  If you cannot upgrade
libcurl on your machine(s), you can put

local({
    options(useHTTPS = FALSE)
})

in the Rprofile.site file, or your ~/.Rprofile.  You still get a
warning, but you do get the list of http repositories.

Come to think about it: would it be an idea if R defaulted to useHTTPS FALSE if
capabilites("libcur") is FALSE?

-- 
Regards,
Bj?rn-Helge Mevik

Hi Bj?rn-Helge,

Bj?rn-Helge Mevik <b.h.mevik at usit.uio.no> writes:
> Loris Bennett <loris.bennett at fu-berlin.de> writes:
>
>> It seems that R needs libcurl 7.28.0, but my platform (Scientific Linux
>> 6.7) only provides version 7.19.7.
>
> We got "bit" by this when upgrading to 3.2.2.  If you cannot
upgrade
> libcurl on your machine(s), you can put
>
> local({
>     options(useHTTPS = FALSE)
> })
>
> in the Rprofile.site file, or your ~/.Rprofile.  You still get a
> warning, but you do get the list of http repositories.
Thanks for the hint.  I think I'll use the setting Rprofile.site for the
time being until we get an update of libcurl.
> Come to think about it: would it be an idea if R defaulted to useHTTPS >
FALSE if capabilites("libcur") is FALSE?
+1

Cheers,

Loris

-- 
Dr. Loris Bennett (Mr.)
ZEDAT, Freie Universit?t Berlin         Email loris.bennett at fu-berlin.de