I have some issues in Notification Editor and when I saw in Error Log,
there are some errors regarding Notification editor installation.
I am trying to create new Notification and seeing the following issue.

This is the message I saw in log files.

MESSAGE Unable to create editor ID
com.novell.designer.idm.notificationtemplates.edit ors.NotificationTemplate
Editor: An unexpected exception was thrown

Does it means, I didn't install designer correctly? or is it bug?