The method LocalLBVirtualServerVirtualServerResource() is undefined for the type

I'm working on an iControl and I get an error message: "The method LocalLBVirtualServerVirtualServerResource() is undefined for the type CreateVirtual".

My class name is CreateVirtual. It starts with the following imports:

import iControl.LocalLBVirtualServerVirtualServerResource;

import iControl.CommonProtocolType;

import iControl.CommonVirtualServerDefinition;

import iControl.LocalLBVirtualServerVirtualServerProfile;

And contains these lines:

//Define the type of virtual server 
LocalLBVirtualServerVirtualServerResource[] virtualresource = new LocalLBVirtualServerVirtualServerResource[1]; 
LocalLBVirtualServerVirtualServerResource resource1 = LocalLBVirtualServerVirtualServerResource();

The line generates an error on "LocalLBVirtualServerVirtualServerResource()" which I pasted above. I don't see why it would, as I imported the necessary class. Is there something I'm missing?