Missing UIBaseX. Also some topics missing on this forum.

[tigertrussell]

Assets/NGUI/Scripts/UI/UIAtlas.cs(15,24): error CS0246: The type or namespace name `UIBaseAtlas' could not be found. Are you missing a using directive or an assembly reference?
Assets/NGUI/Scripts/UI/UICamera.cs(31,25): error CS0246: The type or namespace name `UIBaseCamera' could not be found. Are you missing a using directive or an assembly reference?

I am getting like 8 of these errors.

I searched the forum and there was a topic about it, clicking on it gives a 404.

[tigertrussell]

I just hit "Import" again in the asset store and it fixed it. Weird. Didn't alter the NGUI folder. Oh well.

Still, I'd investigate what's up with your forum

[ArenMook]

Follow update instructions from the readme.