title: erroneous pipeline: no element "facedetect"
body: <p>I am trying to detect face using (Gstreamer open-cv) plugin, using following pipeline.  </p>
  
  <p>Face detection from image</p>
  
  <pre><code>gst-launch-1.0 filesrc location=/home/talview22/Pictures/face.png ! decodebin ! ffmpegcolorspace ! facedetect ! ffmpegcolorspace ! ximagesink
  </code></pre>
  
  <p>face detection on live feed</p>
  
  <pre><code>gst-launch-1.0 v4l2src ! 'video/x-raw-rgb,width=640,height=480' ! ffmpegcolorspace ! faceblur face-width=40 face-height=40 ! ffmpegcolorspace ! xvimagesink
  </code></pre>
  
  <p>getting following error,</p>
  
  <blockquote>
    <p>WARNING: erroneous pipeline: no element "facedetect"</p>
  </blockquote>
  
  <p>facedetect plugin already installed, I checked.</p>
  
  <pre><code>talview22@talview22-System-Product-Name:/var/www/html/backboneapp$ gst-inspect-1.0 facedetect
  Factory Details:
    Rank                     none (0)
    Long-name                facedetect
    Klass                    Filter/Effect/Video
    Description              Performs face detection on videos and images, providing detected positions via bus messages
    Author                   Michael Sheldon &lt;mike@mikeasoft.com&gt;
  </code></pre>
  
  <p>How can I resolve?</p>