Coming here from post re: cheese, at suggestion of Just17. Tried to install rpm, fixed gtk+3.0 dependency, then got this error:
[doug@Linux1 Downloads]$ rpm -ivh guvcview-1.6.1-1KernelKarter2012.i586.rpm
error: can't create transaction lock on /var/lib/rpm/__db.000 (No such file or directory)
Don't know what to do to fix this. suggestions gratefully appreciated!