R SIG Debian - Aug 2018 - Xenial rpart package on CRAN built with wrong R version?

I?m not using the PPA, but the CRAN mirror from
https://cran.r-project.org/bin/linux/ubuntu/#installation:

deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/

On 14 Aug 2018, at 12:25, George N. White III <gnwiii at
gmail.com<mailto:gnwiii at gmail.com>> wrote:

qOn Tue, 14 Aug 2018 at 05:04, Ulrich KELLER <ulrich.keller at
uni.lu<mailto:ulrich.keller at uni.lu>> wrote:
Hello,

I just upgraded my Ubuntu Xenial system to R 3.5.1 (from 3.4.?) by changing the
sources.list entry and doing an "apt-get dist-upgrade". Everything
works except loading the rpart package in R:

What sources.list entry did you use?
> library(rpart)
Error: package or namespace load failed for ?rpart?:
 package ?rpart? was installed by an R version with different internals; it
needs to be reinstalled for use with this R version
[...]
Package r-cran-rpart was updated though, as "apt-cache show
r-cran-rpart" lists the package file as
"xenial-cran35/r-cran-rpart_4.1-13-1cran1xenial0_amd64.deb". No other
version of rpart is installed. It seems that this Ubuntu Xenial package has to
be updated with a version of rpart what was built with R 3.5 (instead of 3.4.3).

I have a working rpart:

Filename: pool/main/r/rpart/r-cran-rpart_4.1-13-3cran1ppa0xenial0_amd64.deb

--
George N. White III



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On 08/14/2018 06:42 AM, Ulrich KELLER wrote:
> I?m not using the PPA, but the CRAN mirror from
https://cran.r-project.org/bin/linux/ubuntu/#installation:
> 
> deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
> 
> On 14 Aug 2018, at 12:25, George N. White III <gnwiii at
gmail.com<mailto:gnwiii at gmail.com>> wrote:
> 
> qOn Tue, 14 Aug 2018 at 05:04, Ulrich KELLER <ulrich.keller at
uni.lu<mailto:ulrich.keller at uni.lu>> wrote:
> Hello,
> 
> I just upgraded my Ubuntu Xenial system to R 3.5.1 (from 3.4.?) by changing
the sources.list entry and doing an "apt-get dist-upgrade". Everything
works except loading the rpart package in R:
> 
Not quite sure if this has been resolved.  I can confirm that the Xenial 
rpart packages on the RRutter3.5 PPA is indeed built against R 3.5.  The 
rpart packages on CRAN is the same as on the PPA, so I believe this is 
an isolated incident.

Sometime the dist-upgrade leaves a few breadcrumbs that need to be 
cleaned up.  If all else fails, remove the installed rpart package, 
download the correct binary from CRAN or the PPA, and install with dpkg.

Hope this helps,
Michael

I manually downloaded the rpart package and installed it using dpkg, without
removing the old rpart package first, and now everything works. During the
installation, dpkg said:

Unpacking r-cran-rpart (4.1-13-1cran1xenial0) over (4.1-13-1cran1xenial0)

So again, it seemed that the new version had been installed, but it really
wasn?t. I had no idea that something like this could happen. Huh.

Anyway, thank you very much for your help!


On 15 Aug 2018, at 00:38, Michael Rutter <marutter at
gmail.com<mailto:marutter at gmail.com>> wrote:



On 08/14/2018 06:42 AM, Ulrich KELLER wrote:
I?m not using the PPA, but the CRAN mirror from
https://cran.r-project.org/bin/linux/ubuntu/#installation:
deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
On 14 Aug 2018, at 12:25, George N. White III <gnwiii at
gmail.com<mailto:gnwiii at gmail.com><mailto:gnwiii at
gmail.com>> wrote:
qOn Tue, 14 Aug 2018 at 05:04, Ulrich KELLER <ulrich.keller at
uni.lu<mailto:ulrich.keller at uni.lu><mailto:ulrich.keller at
uni.lu>> wrote:
Hello,
I just upgraded my Ubuntu Xenial system to R 3.5.1 (from 3.4.?) by changing the
sources.list entry and doing an "apt-get dist-upgrade". Everything
works except loading the rpart package in R:

Not quite sure if this has been resolved.  I can confirm that the Xenial rpart
packages on the RRutter3.5 PPA is indeed built against R 3.5.  The rpart
packages on CRAN is the same as on the PPA, so I believe this is an isolated
incident.

Sometime the dist-upgrade leaves a few breadcrumbs that need to be cleaned up. 
If all else fails, remove the installed rpart package, download the correct
binary from CRAN or the PPA, and install with dpkg.

Hope this helps,
Michael

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