.Map :: MoHAA Mapping

When I want to play my map that I created in spearhead, then the console gives a error and i can't play my map. The error is :"LoadTGA only type 2(RGB), 3(gray) and 10 (RGB) TGA images supported".
Does onyone know what this means and what i can do against it.

Please help me. Martijn_NL

Probably you're using a 32-bits tga without an alpha channel, which is not allowed.

It should give you a texture name.

I will try, but now i first should go to work. Thanks