package activemq 5.6.0+dfsg1-4+deb8u1build0.15.04.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6

[Rudzuan Sulaiman]

please help

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: activemq 5.6.0+dfsg1-4+deb8u1build0.15.04.2
ProcVersionSignature: Ubuntu 3.19.0-49.55-generic 3.19.8-ckt12
Uname: Linux 3.19.0-49-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.8
AptOrdering:
 google-chrome-stable: Install
 activemq: Configure
 google-chrome-stable: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Thu May 19 19:59:36 2016
DuplicateSignature: package:activemq:5.6.0+dfsg1-4+deb8u1build0.15.04.2:subprocess installed post-installation script returned error exit status 6
ErrorMessage: subprocess installed post-installation script returned error exit status 6
InstallationDate: Installed on 2015-01-07 (498 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1.1
 apt 1.0.9.7ubuntu4.2
SourcePackage: activemq
Title: package activemq 5.6.0+dfsg1-4+deb8u1build0.15.04.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6
UpgradeStatus: Upgraded to vivid on 2016-05-10 (9 days ago)
mtime.conffile..etc.default.activemq: 2015-12-19T21:13:44.823403
mtime.conffile..etc.init.d.activemq: 2011-03-27T12:20:57

[Matthias Klose (doko)]

etting up activemq (5.6.0+dfsg1-4+deb8u1build0.15.04.2) ...
usermod: no changes
insserv: warning: script 'K01activemq' missing LSB tags and overrides
insserv: warning: script 'activemq' missing LSB tags and overrides
Failed to start activemq.service: Unit activemq.service failed to load: No such file or directory.
invoke-rc.d: initscript activemq, action "start" failed.
dpkg: error processing package activemq (--configure):
 subprocess installed post-installation script returned error exit status 6