I install and receive some error

Unpacking...
Extracting...
UnZipSFX 5.40 of 28 November 1998, by Info-ZIP (Zip-Bugs@lists.wku.edu).
creating: JMF-2.1.1e/
creating: JMF-2.1.1e/bin/
inflating: JMF-2.1.1e/bin/jmfinit
inflating: JMF-2.1.1e/bin/jmfregistry
inflating: JMF-2.1.1e/bin/jmstudio
creating: JMF-2.1.1e/doc/
inflating: JMF-2.1.1e/doc/attributions.html
inflating: JMF-2.1.1e/doc/formats.html
inflating: JMF-2.1.1e/doc/readme.html
creating: JMF-2.1.1e/lib/
inflating: JMF-2.1.1e/lib/libjmcvid.so
inflating: JMF-2.1.1e/lib/libjmdaud.so
inflating: JMF-2.1.1e/lib/libjmfjawt.so
inflating: JMF-2.1.1e/lib/libjmg723.so
inflating: JMF-2.1.1e/lib/libjmgsm.so
inflating: JMF-2.1.1e/lib/libjmh261.so
inflating: JMF-2.1.1e/lib/libjmh263enc.so
inflating: JMF-2.1.1e/lib/libjmjpeg.so
inflating: JMF-2.1.1e/lib/libjmmpa.so
inflating: JMF-2.1.1e/lib/libjmmpegv.so
inflating: JMF-2.1.1e/lib/libjmmpx.so
inflating: JMF-2.1.1e/lib/libjmutil.so
inflating: JMF-2.1.1e/lib/libjmv4l.so
inflating: JMF-2.1.1e/lib/libjmxlib.so
inflating: JMF-2.1.1e/lib/jmf.properties
inflating: JMF-2.1.1e/lib/jmf.jar
inflating: JMF-2.1.1e/lib/mediaplayer.jar
inflating: JMF-2.1.1e/lib/multiplayer.jar
Warning:
Name: HorScrollBar
Class: XmScrollBar
The specified scrollbar value is greater than the maximum
scrollbar value minus the scrollbar slider size.

JavaSound Capture Supported = false
java.lang.Error: Can't open video card 0
java.lang.Error: Can't open video card 1
java.lang.Error: Can't open video card 2
java.lang.Error: Can't open video card 3
java.lang.Error: Can't open video card 4
java.lang.Error: Can't open video card 5
java.lang.Error: Can't open video card 6
java.lang.Error: Can't open video card 7
java.lang.Error: Can't open video card 8
java.lang.Error: Can't open video card 9
Done.


please explain error that I receive
The line "java.lang.Error: Can't open video card 0"
That mean I can't use JMF for receive video file ?
I don't understand Why does this error happen?
I can use my video card well