On 03/22/2017 02:54 PM, Matthieu S wrote:
Hi
I am facing an issue with the package selectr, where I get an error trying
to run an example code: css_to_xpath(".testclass"), gives could not find
function "xpath_class"
The issue arises however only with the package installed with apt-get, not
when installed from within R. I got a similar issue with maptools, where I
was not able to use data(wrld_map), and switching to the version "from
within R" version did solve the issue in the same way.
Note that I posted the issue some time ago on stack-overflow:
http://stackoverflow.com/questions/40874011/r-rvest-could-not-find-function-xpath-element/42960170#42960170
but now that I pinned the issue down to the apt-get versus R, I hope I can
ask on this list? For the apt-get, I have cran sources added, as well as
Michael's ppa http://ppa.launchpad.net/marutter/rrutter/ubuntu and
http://ppa.launchpad.net/marutter/c2d4u/ubuntu
Matthieu,
A new version of r-cran-selectr is on the PPA. I think it fixes the
issue you had. Not sure if it is correct, but I am getting a different
result that does not appear to be an error.
Turns out that there is a dependency on codetools that is not listed on
CRAN. This is why your local version (which likely has codetools
installed) worked and not the one built on the PPA. But that has been
fixed, and will be for all future versions.
Michael
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