How to use carbide Crash Debugger

hi, all！Anyone have experience in using Crash Debugger？I met some problems，
As “Carbide C++ help > Carbide Tools > Symbian OS Crash Debugger > Reference > Symbian OS Crash Debugger Launch Configuration” suggesting，I creating a Crash Debugger Config，connecting mobile，and beginning debug，but a error occured：
[B]Error creating session: CrashDebuggerProtocolPlugin : Fail to shake hand with Crash Debug Monitor. It's usually because the OS on your device is not crashed.[/B]
the COM port I have tried [B]series port[/B] and[B] NOKIA N82 USB[/B]（I use usb connection），but both failed.

In Carbide C++ help, it say can input Commands in Crash Debugger Console view, but the view is not Editable; maybe it only work under certain conditions, I think.

I have some questions：
1.how to resolve this error："Fail to shake hand with Crash Debug Monitor" ，Are there any plugins I have to install just like TRK?
2.When will I be able to enter the command in Crash Debugger Console view？

Thanks！