There's no clear message about the dependency, My step is:
Create a record in "Software Repositories" of YAST (following the instruction of installation in SUSE);
Select vlc(0.8.6c) from the "Package Selector" in "Software Management";
It lists a long list of software to be installed under vlc like libxxxx.xx()(64bit) etc;
After accepting, it shows (in Chinese) "Due to lack of dependency, can't install vlc"