Common code errors

ImportError:no module named xxx

This error is Import error,there is no module stepper.

Reason：

• You didn't pull file stepper.py to your board.look it through at：usage of module

• After pulling it,you need to restart to make the module go into effect.

MemoryError:FB Alloc Collision!!!

This problem is caused duo to the template file is so huge that the memmory collide.Look it through at: template matching

AttributeError:'tuple' object has no attrbute 'rect'

This error-reporting hint looks like compiling the wrong codes at first sight,it is wrong indeed,a tupple has no method rect.But the code id routine's code,so what's wrong?

Firmware doesn't match IDE！Just update firmware.Look it through it at:update firmware