Modified method getQuantity() to avoid crash if the quantity haven't got an unit
Modified method getQuantity() to avoid crash if the quantity haven't got
an unit
MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab