Segmentation fault ERROR when run tilecache_seed.py

[Alphatran]

Dear all members of TileCache Board,

The last time, I configure and run TileCache perfectly. But I'm not lucky at this time

When I run the command: tilecache_seed.py mytilecachelayername 0 5

It said: "Segmentation fault", no more no less !

I have search through the www but this error may be not popular. I hope you have experienced on this problem

Please help me!