railcraft makes my tekkit crast

[Thepowerslave]

Title: railcraft makes my tekkit crast

Version: 3.1.2

OS: 32-bit operating system

Java Version: 7 update 5

Description of Problem:

when ever i try to make something in railcraft my tekkit will crash can any one help? thanks

Error Messages:

Java.Null.pointer. exception

Error Log:

[tanki123]

Can you provide a better crash log ??

[kaosjr]

1. Use Java JDK 7u6

2. I have no knowledge on railcraft. But i am pretty good with code. Post the whole crash log!