i build a map in wb but when i want to play map in skirmish mode ground is black and i cannot see texture

did you add skirmisch players?

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Did you mess with the global lighting?

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i set global lighting and set players but ground is black yet

Is this only a problem with this map or all maps? If the later, You might need to reinstall. It might be a height issue if you haven't raised the terrain much and are working with the default elevation. If you've added a bunch of hills you don't want messed up I would suggest using the "Mound Tool" to fix the problem. Set the size large enough to cover corner-to-corner across the map. Set the amount to raise the map to say 50. Find the exact center of the map and click ONCE and wait. As you're raising the whole map by the height you set, the process might take awhile. Save the map with a new name and check it out. If you still have problems, ZIP up the map and attach it to a post. I'm sure someone would be happy to have a look at it.

I also have this same problem with one of my new skirmish maps. However the issue is ONLY for that map, all other maps work fine...
By the way, this map of mine has worked before, but after I went to edit it again today, it did not work (the textures would not show up in-game). I did not add anything unusual to the map when I edited it this time.

I checked the height already and it seems to be fine, any other suggestions? Boundaries are fine, global lighting is unchanged, all skirmish players are set as usual.
My map has quite a few mountain ranges on it..

Any help would be appreciated. Thanks.