Error E1115 for no reason (solved, due to A7 noob problem)

I have error E1115: on a map called physics.wmp. The Error reads:

Bad format (24 & 32 bit RLE only)

Strangly I am using no textures. The code read like this:

// physics test


function main()
{
freeze_mode = 1;
level_load ("physics.wmp"); //load the room
wait(3); // give the game time to start
freeze_mode = 0;
}

Any clues? I have no idea how to solve this.

EDIT: I know it should be wmb but this shows an error saying 'cannot find map'. I have built the map.

SOLVED: Sorry, I am knew to A7. The A7 map buld is different and I was only constructing the BSP tree which would have been incorrect. Thanks for your help darkinferno and delinkx.

u can load the "wmp" plain file directly by the engine. u need to convert to "wmb" format first. u can do this in WED by building that map.

I have build the map and it still proceeds to say this. If I run the wmb instead it comes up with an error stating it cant find the map.

well i remember getting this problem, am not sure how its solved tho... did u include acknex,h and default.c ? because ur main function seems ok

Solved. I was not building the map simply making BSP tree.