Ubuntu: uninstall/purge doesn't work

[rmoriz]

root@default-ubuntu-1404:~# apt-get install td-agent
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  td-agent
0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 0 B/61.1 MB of archives.
After this operation, 212 MB of additional disk space will be used.
Selecting previously unselected package td-agent.
(Reading database ... 53465 files and directories currently installed.)
Preparing to unpack .../td-agent_2.2.0-0_amd64.deb ...
Unpacking td-agent (2.2.0-0) ...
Setting up td-agent (2.2.0-0) ...
Installing default conffile /etc/td-agent/td-agent.conf ...
 * Starting td-agent  td-agent                                                                            [ OK ] 
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...


root@default-ubuntu-1404:~# apt-get purge td-agent 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  td-agent*
0 upgraded, 0 newly installed, 1 to remove and 4 not upgraded.
After this operation, 212 MB disk space will be freed.
Do you want to continue? [Y/n] 
(Reading database ... 73265 files and directories currently installed.)
Removing td-agent (2.2.0-0) ...
 * Stopping td-agent td-agent                                                                             [ OK ] 
Purging configuration files for td-agent (2.2.0-0) ...
update-rc.d: /etc/init.d/td-agent exists during rc.d purge (use -f to force)
dpkg: error processing package td-agent (--purge):
 subprocess installed post-removal script returned error exit status 1
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
Errors were encountered while processing:
 td-agent
E: Sub-process /usr/bin/dpkg returned an error code (1)

[repeatedly]

Sorry I missed this PR because we have already moved to omnibus-td-agent: https://github.com/treasure-data/td-agent#note

BTW, I did sudo apt-get purge td-agent with td-agent 2.3.1 and no errors.
I hope this is fixed with latest version.