The compiler says that every constructor and function is overridden and will not compile. Am I using #IFNDEF incorrectly? - C ++

I am trying to implement my own OrderedList data structure using class templates. Every constructor and function in my CPP file has an error opening '{'. The error reads "Overriding FUNCTION_NAME FUNTION_NAME previously declared here."

I had several colleagues who looked at him, but without success. Here are my files and error:

CPP FILE "MyOrderedList.cpp"

#include "MyOrderedList.h"

template <class E>
MyOrderedList<E>::MyOrderedList() {/*IMPLEMENTATION*/}

template <class E>
MyOrderedList<E>::MyOrderedList(const MyOrderedList<E>& orig) { /*IMPLEMENTATION*/}

template <class E>
void MyOrderedList<E>::operator =(const MyOrderedList<E>& orig){/*IMPLEMENTATION*/}

template <class E>
MyOrderedList<E>::~MyOrderedList() {/*IMPLEMENTATION*/}

template <class E>
void MyOrderedList<E>::insert(E data){/*IMPLEMENTATION*/}

template <class E>
E MyOrderedList<E>::get(int pos) const{/*IMPLEMENTATION*/}

template <class E>
Node<E>* MyOrderedList<E>::getHead() const{/*IMPLEMENTATION*/}

template <class E>
MyOrderedList<E> MyOrderedList<E>::kLargest(int k) const{/*IMPLEMENTATION*/}

template <class E>
MyOrderedList<E> MyOrderedList<E>::operator +(const MyOrderedList<E>& list {/*IMPLEMENTATION*/}

H FILE "MyOrderedList.h"

#ifndef MYORDEREDLIST_H
#define MYORDEREDLIST_H

#include <iostream>
#include <cstdlib>
#include "Node.h"

template <class E>
class MyOrderedList;
template <class E>
std::ostream& operator <<(std::ostream& out, const MyOrderedList<E>& list);

template <class E>
class MyOrderedList {
public:
    MyOrderedList();
    MyOrderedList(const MyOrderedList<E>& orig);
    void operator =(const MyOrderedList<E>& orig);
    virtual ~MyOrderedList();

    bool remove(E data);
    MyOrderedList<E> kLargest(int k) const;
    E get(int pos) const;
    void insert(E data);
    Node<E>* getHead() const;

    MyOrderedList<E> operator +(const MyOrderedList<E>& list);

    friend std::ostream& operator <<(std::ostream& out, const MyOrderedList<E>& list){/*IMPLEMENTATION*/}

private:
    Node<E>* head;
    int size;
};

#include "MyOrderedList.cpp"
#endif  //MYORDEREDLIST_H

Node.h

#ifndef NODE_H
#define NODE_H

#include <iostream>

template <class E>
class Node {
public:
    Node(const E& init_data = NULL, Node<E>* init_link = NULL){data = init_data; link = init_link;}
    Node(const Node<E>& orig);
    virtual ~Node();

    E getData() const{return data;}
    void setData(E newData);

    Node<E>* getLink(){return link;}
    void setLink(Node<E>* nextLink) {link = nextLink;}
private:
    E data;
    Node<E>* link;
};

#endif  /* NODE_H */

Compiler errors

MyOrderedList.cpp:12: error: redefinition of `MyOrderedList<E>::MyOrderedList()'
MyOrderedList.cpp:12: error: `MyOrderedList<E>::MyOrderedList()' previously declared here
MyOrderedList.cpp:19: error: redefinition of `MyOrderedList<E>::MyOrderedList(const MyOrderedList<E>&)'
MyOrderedList.cpp:19: error: `MyOrderedList<E>::MyOrderedList(const MyOrderedList<E>&)' previously declared here
MyOrderedList.cpp:42: error: redefinition of `void MyOrderedList<E>::operator=(const MyOrderedList<E>&)'
MyOrderedList.cpp:42: error: `void MyOrderedList<E>::operator=(const MyOrderedList<E>&)' previously declared here
MyOrderedList.cpp:77: error: redefinition of `MyOrderedList<E>::~MyOrderedList()'
MyOrderedList.cpp:77: error: `virtual MyOrderedList<E>::~MyOrderedList()' previously declared here
MyOrderedList.cpp:91: error: redefinition of `void MyOrderedList<E>::insert(E)'
MyOrderedList.cpp:91: error: `void MyOrderedList<E>::insert(E)' previously declared here
MyOrderedList.cpp:119: error: redefinition of `E MyOrderedList<E>::get(int) const'
MyOrderedList.cpp:119: error: `E MyOrderedList<E>::get(int) const' previously declared here
MyOrderedList.cpp:134: error: redefinition of `Node<E>* MyOrderedList<E>::getHead() const'
MyOrderedList.cpp:134: error: `Node<E>* MyOrderedList<E>::getHead() const' previously declared here
MyOrderedList.cpp:140: error: redefinition of `MyOrderedList<E> MyOrderedList<E>::kLargest(int) const'
MyOrderedList.cpp:140: error: `MyOrderedList<E> MyOrderedList<E>::kLargest(int) const' previously declared here
MyOrderedList.cpp:158: error: redefinition of `MyOrderedList<E> MyOrderedList<E>::operator+(const MyOrderedList<E>&)'
MyOrderedList.cpp:158: error: `MyOrderedList<E> MyOrderedList<E>::operator+(const MyOrderedList<E>&)' previously declared here