Would like to know why im getting the following error and how to fix it

class Queue //Queue class begins----CASHIER!!!!?????

{

private:

Node*front;

Node*rear;

int count;//counter

int timer;//minutes in use

char status;//'a'=available,'i'=inactive

int timelimit;//depends on customer service_time????

int in_line;

public:

Queue();//default constructor

void enqueue(int element);//adds a node to the end of a list

int dequeue();//removes a node from the front of the queue

int get_front(void);//??Returns item at the front of the queue

bool empty(void);//returns true if queue is empty

void inc_timer();//minutes in use

int get_timer();//returns timer

char get_status();//'a'=available,'i'=inactive

int get_inline();

int get_timelimit();

void add_customer(int service_time);

};

Queue::Queue()

{ timer=0;

status=0;

in_line=0;

front=NULL;

rear=NULL;

count=0;

}

char Queue::get_status()//returns status of queue??

{

return status;

}

void Queue::inc_timer()//increase timer

{

timer++;

}

int Queue::get_timer()//return time??

{

return timer;

}

void Queue::enqueue(int element)//adds to the rear

{

Node*ptr=new Node();

ptr->set_data(element);

//ptr->getdata=element;

//ptr->get_next=NULL;

if (front==NULL)

{

front=rear=ptr;

}

else

{

rear->setnext(ptr);//?

rear=ptr;

}count++;

}

int Queue::dequeue()//removes node from front

{

if(front!=NULL)

{

Node*ptr=front;

delete front;

front=ptr->get_next();

}

if(front==NULL)

{ rear=NULL;

count=count-1;//??

return true;

}else

return false;

}

int Queue::get_front(void)///???

{ if(front!=NULL)

{

return front->getdata();

cout

}

else

return 0;

}

bool Queue::empty(void)//determines if queue is empty

{

if((count=0)||(front==NULL))

return true;

else

return false;

}

int Queue::get_inline()

{

return in_line;

}

int Queue::get_timelimit()

{

return timelimit;

}

void Queue::add_customer(int service_time)

{

if(timelimit=NULL)

{

timer=0;

}

get_timelimit.dequeue(service_time); //***error is here*****

}

1 error C2228: left of'.dequeue' must have class/struct/union project1.cpp