Plasma Media Center fails to play music and videos

[Shantanu Tushar]

Playing an audio or video file with Plasma Media Center causes the application to freeze and show the following output on the terminal-

shantanu@inshantanu:~$ plasma-mediacenter Music/Songs/Pop/Kathy_Kathy.mp3
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon

(plasma-mediacenter:15218): GLib-GObject-WARNING **: cannot register existing type 'GstObject'

(plasma-mediacenter:15218): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(plasma-mediacenter:15218): GLib-GObject-CRITICAL **: g_type_register_static: assertion 'parent_type > 0' failed

(plasma-mediacenter:15218): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(plasma-mediacenter:15218): GStreamer-CRITICAL **: gst_element_class_set_details_simple: assertion 'GST_IS_ELEMENT_CLASS (klass)' failed

(plasma-mediacenter:15218): GStreamer-WARNING **: static caps 0x7ff75d713670 string is NULL

(plasma-mediacenter:15218): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed

(plasma-mediacenter:15218): GStreamer-WARNING **: static caps 0x7ff75d7136f0 string is NULL

(plasma-mediacenter:15218): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed

(plasma-mediacenter:15218): GStreamer-WARNING **: static caps 0x7ff75d713670 string is NULL

(plasma-mediacenter:15218): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: plasma-mediacenter 1.2.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Apr 20 01:37:24 2014
InstallationDate: Installed on 2014-04-18 (1 days ago)
InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: plasma-mediacenter
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.