I just went into the step 2 of the Aachen Railway training. i followed the steps and it also told me that I've succeed to start the train, but it didn't move. Could you tell me what's wrong with it? Many thanks.(My English isn't very good, I hope you can understand what I mean.)
A screenshot of the cab would help. There are a number of reasons on German trains why they might not roll.
The brakes are still set (the dial in the HUD marked BC for Brake Cylinder is showing 3.1N of pressure). Move the brake handle to release, then pull the throttle all the way back to OFF to clear the interlock, and see if that works.
the error is here. to make the train move that red rectangle must be white. It can depend on several factors. You first try to return the throttle knob to position 0 and make sure that rectangle turns white. Only then try again to increase the throttle to 1,2,3, etc. Also try restarting the tutorial and make sure that with the doors closed and with the throttle set to 0 that rectangle is white.
Your problem is that the parking brake is set. Press the parking brake release button until it is released (usually 1 or 2 seconds is enough).
They are just saying thank you. As a new member it should be expected they might not know of features like Multi-Quote.