pitivi crashed with pitivi.utils.pipeline.PipelineError in setState(): Failure changing state of the Gst.Pipeline to <enum GST_STATE_PLAYING of type GstState>, currently reset to NULL

[Yuui Tanabe]

I decided to render the video,but PiTiVi's rendering status bar isn't move.I clicked the cancel button,the PiTiVi crashed.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: pitivi 0.95-1
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Fri Mar 25 12:20:38 2016
ExecutablePath: /usr/bin/pitivi
InstallationDate: Installed on 2016-03-24 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
InterpreterPath: /usr/bin/python3.5
ProcCmdline: /usr/bin/python3 /usr/bin/pitivi
ProcEnviron:
 PATH=(custom, no user)
 SHELL=/bin/bash
 LANG=ja_JP.UTF-8
 LANGUAGE=ja
 XDG_RUNTIME_DIR=<set>
PythonArgs: ['/usr/bin/pitivi']
SourcePackage: pitivi
Title: pitivi crashed with pitivi.utils.pipeline.PipelineError in setState(): Failure changing state of the Gst.Pipeline to <enum GST_STATE_PLAYING of type GstState>, currently reset to NULL
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo