Comment 15 for bug 137573

First install attempt:

Selecting previously deselected package poker-web.
(Reading database ... 142988 files and directories currently installed.)
Unpacking poker-web (from poker-web_1.1.1-1ubuntu2_all.deb) ...
.: 15: Can't open /usr/share/dbconfig-common/dpkg/config.mysql
dpkg: error processing poker-web_1.1.1-1ubuntu2_all.deb (--install):
 subprocess pre-installation script returned error exit status 2
/var/lib/dpkg/tmp.ci/postrm: line 28: /usr/share/dbconfig-common/dpkg/postrm.mysql: No such file or directory
dpkg: error while cleaning up:
 subprocess post-removal script returned error exit status 1

Second install attempt:

$ sudo dpkg -i poker-web_1.1.1-1ubuntu2_all.deb
(Reading database ...
dpkg: serious warning: files list file for package `poker-web' missing, assuming package has no files currently installed.
143409 files and directories currently installed.)
Preparing to replace poker-web 1.1.1-1ubuntu2 (using poker-web_1.1.1-1ubuntu2_all.deb) ...
.: 15: Can't open /usr/share/dbconfig-common/dpkg/config.mysql
dpkg: error processing poker-web_1.1.1-1ubuntu2_all.deb (--install):
 subprocess pre-installation script returned error exit status 2
/var/lib/dpkg/tmp.ci/postrm: line 28: /usr/share/dbconfig-common/dpkg/postrm.mysql: No such file or directory
dpkg: error while cleaning up:
 subprocess post-removal script returned error exit status 1
Errors were encountered while processing:
 poker-web_1.1.1-1ubuntu2_all.deb

Please test on a system that does not have mysql installed, update the fix, and resubscribe UUS.