This pre-existing question on askubuntu.com purports to solve the problem of installing the reboot of HTML Tidy: How to install updated version of HTML tidy. However, when I followed the accepted answer's instructions on Xenial 16.04.2, I encountered a problem that was not covered there, so am creating a new question.
I do the following:
wget https://github.com/htacg/tidy-html5/releases/download/5.4.0/tidy-5.4.0-64bit.deb
sudo dpkg -i tidy-5.4.0-64bit.deb
and get this error:
dpkg: error processing archive tidy-5.4.0-64bit.deb (--install): trying to overwrite '/usr/lib/libtidy.so', which is also in package libtidy-0.99.0 2009 1223cvs-1.5
I do not already have the older tidy package installed, but I went through the motions of uninstalling it anyway:
sudo apt-get -y autoremove tidy
Package 'tidy' is not installed, so not removed
No change in ability to install tidy 5.4.0 afterwards, or the error message that ensues.
Here is the result of apt-cache policy:
apt-cache policy libtidy-0.99-0
libtidy-0.99-0:
Installed: 20091223cvs-1.5
Candidate: 20091223cvs-1.5
Version table:
*** 20091223cvs-1.5 500
500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
apt-cache policy libtidy-0.99-0say? – steeldriver Jun 25 '17 at 17:24libtidy-0.99-0– steeldriver Jun 25 '17 at 19:17libtidy-0.99-0and thensudo dpkg -i tidy-5.4.0-64bit.debworked, so problem solved. I think I should mention for posterity that uninstallinglibtidy-0.99-0also uninstalledpython-utidylib. – Peaeater Jun 25 '17 at 21:52