[R-pkg-devel] help troubleshooting travis-ci issues?

On Sun, Aug 4, 2019 at 4:54 PM Ben Bolker <bbolker at gmail.com> wrote:

On 2019-08-04 5:43 p.m., I?aki Ucar wrote:

On Sun, 4 Aug 2019 at 23:26, Ben Bolker <bbolker at gmail.com> wrote:

  I'm having some trouble with travis builds of a package (local checks
work fine) and hoping if I can get suggestions for diagnosis &
troubleshooting ...

The package is 'broom.mixed'; I hadn't changed it in a while, but
recently got a minor pull request which seemed reasonable. I believe the
problems I'm having now are dependency and/or caching problems, not
actually related to the changes in the package.

The failing build is here

https://travis-ci.org/bbolker/broom.mixed/builds/567597217

I see various "package x was installed by an R version with different
internals; it needs to be reinstalled for use with this R version".

Top of the page, right side, you should see More options > Caches. Try
removing them and restart the build.

I?aki

  I tried that already, thanks.  That's why I'm now suspecting it's some
kind of mismatch between the Rutter PPAs and the default (?) repos that
Travis uses.  It would be a little painful, but I could edit out the
rstan dependency and try the builds with and without Rutter's PPA to
test that hypothesis ...

Try changing:
sudo add-apt-repository -y "ppa:marutter/rrutter"
sudo add-apt-repository -y "ppa:marutter/c2d4u"
to:
sudo add-apt-repository -y "ppa:marutter/rrutter3.5"
sudo add-apt-repository -y "ppa:marutter/c2d4u3.5"

The R C API changed between R-3.4.x and R-3.5.x, which created
incompatibility in packages installed using different versions.  Any R

3.6.x should use the "ppa:*3.5" PPAs.

  cheers
    Ben Bolker