Importing mos and error uploading dds files

[mongoose]

I'm trying to learn more about mos files for airfield construction by examining more stock one like airfield-triple_1 or others. When I try to import them it says error loading (in particular) d_grass_04 and the airfield outline, even though I know those dds files are in the assets folder where the mos also is. So what's going on?

 

[mongoose]

Well a simple solution is to put a folder with all relevant texture files/tiles in one folder and add that to mos directory choices!