Object not scaled to 1.0, will not unwrap

I was getting this message:

Object not scaled to 1.0, will not unwrap

Or something like it.

Pressed CTRL+A Scale

Now I no longer get the message, but it’s still not unwrapping.

I click on unwrap and nothing happens.

Wot’s, uh, the deal?

If it shows a uv set in the object data panel it has unwrapped.
The common reason why you may not see the unwrap in the uv/image editor window is if it is currently set to show the rendered image. If so just delete it

Thanks, Richard, that did it!