[R] Install on Xenial

[Erich Neuwirth]

I am trying to install R-3.3.0 on Xenial.
I followed the instructions on the corresponding CRAN page, and I added the GPG key.
But after adding
deb https://cran.at.r-project.org//bin/linux/ubuntu xenial/
to /etc/apt/sources.list
and
sudo apt-get update
I get the following error:

Err:7 https://cran.at.r-project.org//bin/linux/ubuntu xenial/ Packages
  SSL: certificate subject name (*.r-project.org) does not match target host name 'cran.at.r-project.org’

What do I need to do to get rid of this error


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 670 bytes
Desc: Message signed with OpenPGP using GPGMail
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20160504/1ee535d0/attachment.bin>