LCML error when enable dsp-bridge. Who can help me; thanks;

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HI all:
When I enable the DSP-bridge,I follow the instructions on
[1]http://elinux.org/BeagleBoard/DSP_Howto
[2]http://elinux.org/BeagleBoard/gst-openmax

but,when i run "gst-launch-0.10 filesrc location="foobar.avi" !
avidemux ! omx_mpeg4dec ! omapfbsink"

I get the errors like this:
NODE:DSPNode_Allocate: Failed to get Node UUID properties

****************LCML ERROR : DSP ************************

Error: Allocate Component : Err Num = 80008021

****************LCML ERROR : DSP ************************

Can you help me; i am so trouble with the issue;