layout-large-mdpi-land not working on Android 1.6?

I've doubled checked that I'm targeting Android 1.6 , but layout-large-mdpi-land, layout-large-land, and layout-mdpi-land all show an 'invalid resource directory name:' error.

The weird thing is that layout-large-mdpi works just fine, and so does layout-land, but whenever I combine the land tag with another开发者_如何学编程 tag, suddenly eclipse yells at me. Any ideas would be helpful.

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Please see if you are sticking to the norms given here