ZK - Open Source Ajax Java Framework

Hi ,

I installed ZK plugin version 0.9.6 on Eclipse Galileo SDK 3.5.1

When I click Window ---> Preferences -----> ZK ------> ZK Packages

this is shown under this menu

An error has occurred when creating this preference page.

Detailed Error is

Unable to create the selected preference page.
An error occurred while automatically activating bundle org.zkoss.eclipse.zks (561).

Anybody who can help me in this matter

Fixed

just by setting new workspace folder