Can not be packaged

[CHJ]

I downloaded .debian, .dsc and .origs. By dpkg-source-x gstreamer0.10_0.10.36-1.5ubuntu1.dsc Then dpkg-buildpackage got the following error:
mv: can not stat'html / index.sgml 'stat: No such file or directory
Makefile:895: recipe for target 'html-build.stamp' failed
make[6]: *** [html-build.stamp] Error 1
make[6]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36/docs/gst'
Makefile:573: recipe for target 'all' failed
make[5]: *** [all] Error 2
make[5]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36/docs/gst'
Makefile:549: recipe for target 'all-recursive' failed
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36/docs'
Makefile:501: recipe for target 'all' failed
make[3]: *** [all] Error 2
make[3]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36/docs'
Makefile:750: recipe for target 'all-recursive' failed
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36'
Makefile:654: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/home/chj/build/test/test/gstreamer0.10-0.10.36'
/usr/share/cdbs/1/class/makefile.mk:47: recipe for target 'debian/stamp-makefile-build' failed
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: Error: debian / rules build provides error exit status

The attachment is the packaging details