No such element or plugin 'filesrc'

[gOOGle md]

A) gst-launch-0.10 version 0.10.29
GStreamer 0.10.29
http://download.fedora.redhat.com/fedora

B) Loaded plugins: presto, refresh-packagekit
Installed Packages
PackageKit-gstreamer-plugin.
i686
0.5.7-2.fc12
@updates
gstreamer.i686
0.10.29-1.fc12
@updates
gstreamer-devel.i686
0.10.29-1.fc12
@updates
gstreamer-plugins-bad-free.i686
0.10.19-1.fc12
@updates
gstreamer-plugins-base.i686
0.10.29-1.fc12
@updates
gstreamer-plugins-good.i686
0.10.23-1.fc12
@updates
gstreamer-python.i686
0.10.16-1.fc12
@rawhide
gstreamer-tools.i686
0.10.29-1.fc12
@updates

C) gst-inspect filesrc

No such element or plugin 'filesrc'

Help anyone plz?
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