Not Grab, message: [vokoscreen] "avconv" is not running

caravena@caravena-530U3C-530U4C:~$ vokoscreen

[vokoscreen] Locale: "es_CL"
[vokoscreen] Version: "2.0.0"
[vokoscreen] Qt Version: 4.8.6
[vokoscreen] asoundlib Version: "1.0.27.2"

[vokoscreen] ---Begin Search external tools---
[vokoscreen] Find avconv Version: "9.11-6:9.11-2ubuntu3"
[vokoscreen] Find pactl
[vokoscreen] Find mkvmerge
[vokoscreen] ---End search external tools---

[vokoscreen] ---Begin search Screen---
[vokoscreen] Number of screens: 1
[vokoscreen] "Display 0 1366 x 768"
[vokoscreen] ---End search Screen---

[vokoscreen] ---Begin search Videoplayer---
[vokoscreen] Find Videoplayer : "/usr/bin/avplay"
[vokoscreen] Find Videoplayer : "/usr/bin/banshee"
[vokoscreen] Find Videoplayer : "/usr/bin/gmplayer"
[vokoscreen] Find Videoplayer : "/usr/bin/gnome-mplayer"
[vokoscreen] Find Videoplayer : "/usr/bin/kdenlive"
[vokoscreen] Find Videoplayer : "/usr/bin/smplayer"
[vokoscreen] Find Videoplayer : "/usr/bin/totem"
[vokoscreen] Find Videoplayer : "/usr/bin/vlc"
[vokoscreen] ---End search Videoplayer---

[vokoscreen] [Regional selection] Frame locked: false

[vokoscreen] ---Begin search PulseAudio Plugin---
[vokoscreen] Found file .asound for PulseAudio Plugin
[vokoscreen] ---End search PulseAudio Plugin---

[vokoscreen] ---Begin Pulse unload Module---
[vokoscreen] ---End Pulse unload Module---

"sni-qt/9301" WARN 02:36:09.740 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE
[vokoscreen] ---Begin search Alsa capture device---
[vokoscreen] alsa_device_sample() in alsadevice.c: open audio device hw:0,0 (Conseguido)
[vokoscreen] alsa_device_sample() in alsadevice.c: Samplerate = 44100
[vokoscreen] Find CaptureCard: "[hw:0,0] HDA Intel PCH"
[vokoscreen] ---End search Alsa capture device---

[vokoscreen] ---Begin search PulseAudio Capture Devices---
[vokoscreen] Find CaptureCard: "Monitor of Audio Interno Estéreo analógico" with device: "alsa_output.pci-0000_00_1b.0.analog-stereo.monitor"
[vokoscreen] Find CaptureCard: "Audio Interno Estéreo analógico" with device: "alsa_input.pci-0000_00_1b.0.analog-stereo"
[vokoscreen] ---End search PulseAudio Capture Devices---

[vokoscreen] [Regional selection] Frame locked: true

[vokoscreen] Executive command : "avconv -f x11grab -framerate 60 -video_size 242x219 -i :0.0+776,417 -dcodec copy -f alsa -ac 2 -i hw:0,0 -pix_fmt yuv420p -c:v mpeg4 -c:a libmp3lame -qscale 1 /tmp/vokoscreen-vokoscreen/vokoscreen-2014-04-27_02-36-15.mkv"

[vokoscreen] "avconv" is running and is ready for reading and writing

[vokoscreen] "avconv" is not running
[vokoscreen] [Regional selection] Frame locked: false

[vokoscreen] ---Begin Pulse unload Module---
[vokoscreen] ---End Pulse unload Module---

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: vokoscreen 2.0.0-2
Uname: Linux 3.14.2-031402-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Sun Apr 27 02:36:43 2014
InstallationDate: Installed on 2014-01-23 (94 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140122)
SourcePackage: vokoscreen
UpgradeStatus: No upgrade log present (probably fresh install)