[TECHNICAL] What the f**k is wrong?

[Rapture]

At the end, it complains that the .dds texture you have for "Cliff_otherside.dds" is not a Power of 2. Whatever your using, Blender/Maya. Check to see if the texture assigned is a multiple of 2 (2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096)
(I don't think the texture used matters, just what the UV size with the texture is.)