Battery Low tutorial

[Tray]

Hi All
I am just new to lejos and I am currently working through the tutorials,
when I compile the BatteryLow class I keep getting the following error.

BatteryLow java21 cannot resolve symbol
symbol method getBatteryPower()
location class josx.platform.rcx.ROM
float voltLevel = (ROM.getBatteryPower() * 10 /355);

Could any one please explain to me why this is happening and also how the battery voltage is calculated with the formula
(ROM.getBatteryPower() * 10 /355);

Thank
Tray

[ruslanS]

I ran into the same problem
Anybody help?
My version of ROM doesn't even have getBatteryPower() method, while in all tutorials it uses that method. I downloaded the latest version for RCX and ROM class has call () methods instead of getBatteryPower()