Welcome to the B4Android communuty.
What tutorial are you speeking of ?
1. Do you have also a device connected ? Are trying to use B4ABridge ? You should use either the Emulator or a device.
2. When you click in the IDE on the Designer menu you open the Designer, this one you must connect either to the emulator or to a device.
3. What tutorial source code are you speaking of and what kind of extensions do you get.
Did you already download the
Beginner's Guide ?
Best regards.