#3 can't work in eclipse 3.0 and eclipse 3.1

[Anonymous]

hello,great creator,
when i copy the eclipsework and easysql plugin to the eclipse,and start eclipse,in the preference i see the eclipsework,but when i click on it,it show a window write

Unable to create the selected preference page.

Reason:
Plug-in "org.eclipse.eclipsework" was unable to instantiate class "org.eclipse.eclipsework.preference.EclipseWorkPreferencePage"

[Nobody/Anonymous]