After installation of ess-18.10.2 emacs-26.2 fails to open files with the message: Cannot open load file: No such file or directory, ess-rd.el. There are similar error description at https://github.com/emacs-ess/ESS/issues/742 and https://aur.archlinux.org/packages/emacs-ess/ .
It happens with (require 'ess-site) and with ;;(require 'ess-site) in init.el .
Interesting, the build system of ess-18.10.2 doesn't install the *.el files any more (while 17.11 did).
As a workaround I masked >=app-emacs/ess-18.10.2 in my /etc/portage/packages.mask .
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ba2336b28ef4397ac3de6c7a27516d6b5a48901c commit ba2336b28ef4397ac3de6c7a27516d6b5a48901c Author: Ulrich Müller <ulm@gentoo.org> AuthorDate: 2019-05-15 09:01:09 +0000 Commit: Ulrich Müller <ulm@gentoo.org> CommitDate: 2019-05-15 09:09:37 +0000 app-emacs/ess: Install elisp source files. Bug: https://bugs.gentoo.org/685978 Package-Manager: Portage-2.3.66, Repoman-2.3.12 Signed-off-by: Ulrich Müller <ulm@gentoo.org> app-emacs/ess/{ess-18.10.2.ebuild => ess-18.10.2-r1.ebuild} | 2 ++ 1 file changed, 2 insertions(+)
(In reply to Juergen Rose from comment #3) > As a workaround I masked >=app-emacs/ess-18.10.2 in my > /etc/portage/packages.mask . Don't be so impatient. :-) Please test ess-18.10.2-r1.
I can confirm that ess-18.10.2-r1 does not produce any error messages and appears to work normally.
Life without emacs was impossible. Now it works also with ess-18.10.2-r1.