Comment 32 for bug 1574045

This has been broken for at least two releases now. The solution seems to be to wipe the whole installation and hope you don't install the wrong package next time.

Preparing to unpack .../account-plugin-google_0.12+16.04.20160126-0ubuntu1_all.deb ...
Unpacking account-plugin-google (0.12+16.04.20160126-0ubuntu1) ...
dpkg: error processing archive /var/cache/apt/archives/account-plugin-google_0.12+16.04.20160126-0ubuntu1_all.deb (--unpack):
 trying to overwrite '/usr/share/accounts/providers/google.provider', which is also in package kaccounts-providers 4:15.12.3-0ubuntu1
Errors were encountered while processing:
 /var/cache/apt/archives/account-plugin-google_0.12+16.04.20160126-0ubuntu1_all.deb