Some Error occur in using Lua Script on windows

[Bruce Chueng]

I installed Mysql Proxy and running 3 instances of Mysql 5.1 in my Computer.
And then,
first, I typed some commands by using cmd, the command is following:

mysql-proxy --proxy-backend-addresses 127.0.0.1:3306 --proxy-backend-addresses 127.0.0.1:3307 --proxy-backend-addresses 127.0.0.1:3308 --proxy-lua-script=test.lua

Secondly, I started up other cmd to connect Mysql Proxy

mysql -u**** -p**** -h xx.xx.xx.xx -P 4040

And then, the first cmd console showed me an Error, the details of Error is following:

ERROR:(.\lua-load-factory.c:88):???: assertion failed: (NULL != factory->data.file.f)

I hope someone could help me, Thanks.