Tool compilation error plz help

[noalias]

when i use the structure for tool this happens:

"Couldn't read map file './toolbeta.map'
building intermediate geometry...
EAX: 0xFFFFFFFE
EBX: 0x002EEB01
ECX: 0x0012F2D0
EDX: 0x00000000
EDI: 0x0012F2D0
EBP: 0x0012F5AC
ESP: 0x0012F19C
EIP: 0x7FFE0304, C3 9C 81 0C ?????
3C2D2D2D ?????
EXCEPTION halt in .\intermediate_geometry.c,#444: triangle->material_index>=0 &&
triangle->material_index<old_material_count"

what do i need to do?