At least, I have to install the latest Eclipse IDE to make it works.
My old eclipse version:
Eclipse IDE for Java Developers
Version: 1.4.2.20120213-0813
Build id: 20120216-1857
and the latest:
Eclipse Platform
Version: 4.2.1.v20120814-120134-9JF7BHVGFyMveli1uX6aTH0q-eAap6PAgOP5mO
Build id: M20120914-1800