There is either a bug in the old JSF implementation or you configured the stuff the wrong way. First upgrade your JSF implementation to the latest available at their homepage (currently 1.2_10) and see if it solves the problem. If it doesn't, then please paste the new stacktrace here along with your faces-config.xml.
1.2 이전 버전에서 발견된 bug다..
2.0을 사용하면 될 것 같다.