/usr/share/evolution/errors/ is in evolution-common 3.18.5.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/evolution/errors/addressbook.error
/usr/share/evolution/errors/calendar.error
/usr/share/evolution/errors/e-system.error
/usr/share/evolution/errors/evolution-mdn.error
/usr/share/evolution/errors/evolution-offline-alert.error
/usr/share/evolution/errors/filter.error
/usr/share/evolution/errors/mail-composer.error
/usr/share/evolution/errors/mail.error
/usr/share/evolution/errors/org-gnome-attachment-reminder.error
/usr/share/evolution/errors/org-gnome-backup-restore.error
/usr/share/evolution/errors/org-gnome-external-editor.error
/usr/share/evolution/errors/org-gnome-face.error
/usr/share/evolution/errors/org-gnome-itip-formatter.error
/usr/share/evolution/errors/org-gnome-mailing-list-actions.error
/usr/share/evolution/errors/shell.error
/usr/share/evolution/errors/widgets.error