Error When compiling a model ( tool.exe prb)

[Corin415]

when ever i try to compile a new model i get this error:


C:\Program Files\Microsoft Games\Halo Custom Edition>tool.exe model /scenery/ram
p
Couldn't read map file './toolbeta.map'
### ramp.jms
EAX: 0xFFFFFFFE
EBX: 0x0020E701
ECX: 0x0012F160
EDX: 0x00000000
EDI: 0x0012F160
ESI: 0x00000000
EBP: 0x0012F43C
ESP: 0x0012F02C
EIP: 0x7FFE0304, C3 9C 81 0C ?????
00000001 ?????
EXCEPTION halt in .\intermediate_geometry.c,#444: triangle->material_index>=0 &&
triangle->material_index<old_material_count

C:\Program Files\Microsoft Games\Halo Custom Edition>pause
Press any key to continue . . .

I am going off of the ramp collision model and Model tutorials , anyone know wut this means?