Fedora :: EGCI Samples Error While Running Programs

I am a final year BE student. I am working on the ehci-0.6 library for tracking the the face in fedora 13 in vmware. I am able to compile the code but could not run the sample programs. The error is as follows. After I compile the program:
cd ehci-0.6
./configure
make

I am able to do the above with out any errors. Later when try running samples. I am getting the below errors:
cd samples
make
./simple2d
(<unknown>:5940): GStreamer-CRITICAL **:

Trying to dispose element appsink1, but it is in ready instead of the NULL state. You need to explicitly set elements to the NULL state before dropping the final reference, to allow them to clean up. This problem may also be caused by a refcounting bug in the application or some element.
(<unknown>:5940): GStreamer-CRITICAL **:
Trying to dispose element ffmpegcsp1, but it is in READY instead of the NULL state. You need to explicitly set elements to the NULL state before dropping the final reference, to allow them to clean up. This problem may also be caused by a refcounting bug in the application or some element.

OpenCV Error: Unspecified error (unicap: failed to get info for device
) in CvCapture_Unicap::initDevice, file /builddir/build/BUILD/OpenCV-2.0.0/src/highgui/cvcap_unicap.cpp, line 139
terminate called after throwing an instance of 'cv::Exception'
Aborted (core dumped)
and but ven tried using
./samples/simple2d
the error I am facing is "could not initialize the capturing"

How to overcome this kind of error. Blank window opens and goes on showing the error mentioned above and ends ven given ctrl + c. The expected output to open a window and display the capture the person present in front of the webcam and print d coordinates of the face captured.